When you open the door to your house on a cold day, you feel a cold draft. What causes
this?
1. Radiation leaking from the outside in.
2. Radiation leaking from the inside out.
3. Cold air from the outside moving toward warm air on the inside.
4. Warm air from the inside moving toward the cold air outside.
Answers
Answer:
4. Warm air from the inside moving toward the cold air outside.
Explanation:
A cold draft can be defined as the process in which a current of cold air is being drawn in from the outside. Also, it involves the process in which a current of warm inside air exits or leaves a building through an opening.
This ultimately implies that, when you open the door to your house on a cold day, you would feel a cold draft as a result of the movement between the warm air from the inside moving toward the cold air outside. The warm air that were trapped inside your house would escape through the door due to a difference between the outside (cold) and inside (warm) atmospheric pressure.
Hence, a difference in temperature and atmospheric pressure between the outside and inside air usually causes a cold draft.
Additionally, air typically moves or travels from a region of high pressure to a region of lower pressure.
Related Questions
Whoever helps me asap and gives the best answer I will mark as brainliest!Part 2: David’s Physical Condition
At his trial, David’s defence argued that his behaviour had not been under his control. Shortly before his behaviour changed, David had accidentally been exposed to a high concentration of an organophosphate pesticide called carbaryl. Carbaryl is a substance that can have an effect on the nervous system. In fact, it behaves similarly to many nerve gasses (chemical weap-ons that exert their effect by impairing the functioning of the nervous system). Carbaryl works by affecting the way that brain cells communicate with each other. This communication occurs at synapses,little gaps at the junctions of nerve cells. Neurones (nerve cells) release chemicals to send signals across the gap. These chemicals are called neurotransmitters. After it has been released, the neurotransmitter is broken down to prevent it from stimulating the post-synaptic neurone for any longer than necessary. Carbaryl prevents the breakdown of a neurotransmitter called acetylcholine (ACh). Exposure to high doses of carbaryl causes ACh to build up in the brain and other parts of the nervous system. One of the many parts of the brain that uses ACh is a structure called the hypothalamus. This structure is important in a huge range of behaviours including eating, drinking, sex, and aggression. Electrical stimulation of specific parts of the hypothalamus can cause a rat to show signs of rage and attack behavior. David’s defence argued that the carbaryl to which he had been exposed had affected the functioning of his hypothalamus. A small provocation would have started the parts of the hypothalamus associated with attack behaviours to start firing. However, because of the carbaryl, they would not have been able to stop, leading to uncontrolled rage and aggression.
Discussion Questions:
• Based on the evidence provided, do you think David is morally responsible
for his crime?
• What possible environmental influences may have incited David to act as he did?
• Why do you think the jury believed the prosecution in spite of the defence’s
argument?
• How does this case affect your views on the nature versus nurture debat
Answers
1. Determining moral responsibility in cases like these can be complex. While David's defense argued that his behavior was a result of the exposure to carbaryl, the concept of moral responsibility takes into account the ability to understand the consequences of one's actions and to make choices accordingly.
If David's exposure to carbaryl significantly impaired his ability to control his behavior and make rational decisions, it could potentially diminish his moral responsibility for the crime.
However, the assessment of moral responsibility is subjective and can depend on legal, ethical, and societal perspectives.
2. The primary environmental influence highlighted in this scenario is David's accidental exposure to the high concentration of carbaryl, an organophosphate pesticide.
Carbaryl, by affecting the communication between brain cells, particularly in the hypothalamus, may have disrupted the normal functioning of David's brain and influenced his behavior.
However, it's worth noting that other environmental factors, such as upbringing, social influences, previous experiences, and stressors, could also play a role in shaping an individual's behavior.
3. The jury might have found the prosecution's case more convincing due to factors such as:
a) Counter Arguments or lack of sufficient evidence presented by the defense.
b) Bias or preconceived notions of the jury members.
c) The prosecution's ability to present a compelling narrative and connect the evidence to David's actions.
d) The jury's limited understanding of the complexities of neurobiology and the effects of substances like carbaryl on behavior.
4. The nature versus nurture debate centers around the relative influence of genetic factors (nature) and environmental factors (nurture) in shaping an individual's traits, behaviors, and actions.
This case highlights the significant impact of an environmental factor, namely the exposure to carbaryl, on David's behavior.
It suggests that environmental influences, in this case, chemical exposure, can have profound effects on neural functioning and subsequent behavior.
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Fibroblasts are the major cellular component in which tissues?
A) Bone
B) Connective
C) Epithelial
D) Muscle
E) Neural
Answers
The correct answer is option B) Connective. Fibroblasts are cells that are found in the connective tissue of the body, such as the dermis of the skin, the tendons and ligaments, and the fibrous capsules of organs.
They are responsible for the production and maintenance of collagen, elastin and other structural proteins that give connective tissue its strength and flexibility. Fibroblasts also produce and secrete factors that attract other cells of the immune system, such as macrophages and lymphocytes, to the site of injury or infection. This is the basis of the inflammatory response.
Fibroblasts are also important for wound healing, tissue repair and remodeling, and for the regulation of tissue homeostasis. In addition, they can play a role in the development and maturation of other cell types, such as adipocytes and chondrocytes. Fibroblasts are thus essential for the functioning and maintenance of many organs, tissues and systems of the body.
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What statement is true of all living organisms?
Answers
Answer:
All living organisms respond to stimuli.
All living organisms can reproduce.
Read and choose the correct word for the blank.
El ________ es verde.
queso
maíz
pimiento
coco
Answers
Answer:
pimiento ( pepper )
Explanation:
Mobile receptors mechanism
Answers
Mobile receptors play a crucial role in the transmission of signals between cells and are essential for various physiological processes in the human body. These receptors are proteins that are embedded in the cell membrane and are specifically designed to bind with specific molecules, such as hormones, neurotransmitters, and other signaling molecules. The mechanism of mobile receptors involves several steps that allow for the efficient and accurate transmission of signals.
1: Binding: The mobile receptor recognizes and binds to its specific ligand, which is the signaling molecule. This binding occurs through complementary shapes and chemical interactions between the receptor and the ligand.
2: Activation: Once the ligand binds to the mobile receptor, it induces a conformational change in the receptor's structure. This change activates the receptor and initiates a series of intracellular events.
3: Signal Transduction: The activated receptor transmits the signal across the cell membrane. It can either directly activate intracellular signaling molecules or interact with other proteins to relay the signal.
4: Cellular Response: The signal transmitted by the mobile receptor triggers a cascade of intracellular events that ultimately leads to a specific cellular response. This response can include changes in gene expression, enzyme activity, ion channel opening, or cell signaling pathways.
5: Termination: To ensure proper regulation, the mobile receptor signal is terminated once the ligand dissociates from the receptor. This allows the receptor to return to its inactive state and be available for future signaling events.
Overall, the mechanism of mobile receptors involves ligand binding, receptor activation, signal transduction, cellular response, and termination of the signal. This intricate process enables cells to communicate and coordinate their functions, contributing to the overall homeostasis and functioning of the human body.
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please help ! What is the main idea, supporting evidence and bold key words help?
Answers
Answer:
carbohydrate, fat and protein.
Explanation: these are main building blocks that make up our body.they help in making muscles, provide energy as well as support the body functions.
this for Earth/Space Science B-CR
Which statement describes one aspect of an earthquake’s magnitude?
It is measured by the Mercalli scale.
It is based on the size of seismic waves.
It is not usually affected by the amount of fault movement.
It is used to determine damage caused by earthquakes.
THE ANWER IS :B THE SEC ONE
Answers
Answer:
It is based on the size of seismic waves
Explanation:
Generally, the size of an earthquake is called its magnitude.
Earthquake’s magnitude is defined as the measure of the amplitude of the seismic waves. A seismometer or seismographs are used to measure seismic waves. So, the statement describes one aspect of an earthquake’s magnitude is that Earthquake’s magnitude depends on the size of seismic waves.
Earthquake’s magnitude is measured by the Richter magnitude scale.
Hence, the correct answer is It is based on the size of seismic waves.
Answer:
It is based on the size of seismic waves.
Explanation:
Seismic wave is an elastic wave in the earth produced by an earthquake or other means used to measure the magnitude
Which structure is highlighted? Which structure is highlighted? hepatic portal vein quadrate lobe inferior vena cava gallbladder
Answers
Answer: (Note: You will find the image as an attached file)
Gallbladder.
Explanation:
The gallbladder is an organ located under the liver that intervenes in food assimilation by the organism. Its main function is to store bile - a liquid produced by the liver to dissolve fats -. The liver produces bile and it reaches the gallbladder through the hepatic and cystic ducts, and it is stored in the gallbladder until it is needed. Whenever the stomach or intestine are digesting food, the gallbladder release the bile which flows through the cystic duct and the bile duct to the thin intestine. In fact, the secretion of bile by this organ is stimulated by food ingestion, especially by the ingestion of meat or fats.
Design and organise learning experiences according to your local circumstances when teaching Processing (including traditional processing of raw materials; metal processing; food processing)
Answers
When teaching Processing, it is essential to design and organize learning experiences that align with local circumstances and provide practical applications.
Here is a suggested approach for teaching Processing, including traditional processing of raw materials, metal processing, and food processing, considering local circumstances:
1. Introduction and Contextualization:
Start by introducing the concept of processing and its importance in various industries. Provide examples of local raw materials, metals, and food products that undergo processing. Discuss the significance of processing in the local economy and its impact on society.
2. Field Trips and Industry Visits:
Arrange field trips to local processing facilities such as factories, mills, or food processing plants. These visits offer students firsthand exposure to different processing techniques and machinery. Encourage students to observe and interact with professionals in the field, asking questions and understanding the practical aspects of processing.
3. Hands-on Workshops:
Organize hands-on workshops where students can engage in practical activities related to processing. For example, set up a metalworking workshop where students can learn basic metal processing techniques like cutting, shaping, and welding. Provide guidance on safety measures and proper tool usage.
4. Local Case Studies:
Explore local case studies of successful processing businesses or initiatives. This could involve inviting guest speakers from local processing companies or inviting entrepreneurs who have started their own processing ventures. Students can learn about the challenges, opportunities, and sustainable practices in the local processing industry.
5. Project-Based Learning:
Assign project-based tasks that allow students to apply their knowledge of processing. For example, students could design and develop a prototype for a food processing machine or propose innovative methods to improve traditional processing techniques using local resources. Encourage creativity, critical thinking, and problem-solving skills throughout the project.
6. Community Engagement:
Encourage students to engage with the local community by organizing outreach programs related to processing. This could involve organizing workshops for local artisans or collaborating with local farmers to develop value-added food products. Such activities foster a sense of social responsibility and provide students with real-world experiences.
7. Assessment and Reflection:
Regularly assess student understanding through quizzes, assignments, and presentations. Encourage reflective practices where students can evaluate their own learning journey and identify areas for improvement. Incorporate feedback mechanisms to continuously enhance the learning experiences.
By designing learning experiences that incorporate field trips, hands-on workshops, local case studies, project-based learning, community engagement, and reflective practices, students will develop a holistic understanding of processing and its significance in their local context. This approach will equip them with practical skills, foster creativity, and promote an entrepreneurial mindset, preparing them for future opportunities in the processing industry.
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The brain and spinal cord are part of the _______ nervous system. The electrical charges that act as nervous signals are called _______. Jellyfish do not have a brain. Instead their nervous system is called a _______. After nervous systems began to develop in bilaterally symmetric animals, some developed ventral, or front, nerve cords, while chordates developed _______ nerve cords. Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called _______ skeletons. _______ do not grow with arthropods, and so occasionally must be shed and regrown from chitin. Muscles move endo- and exoskeletons by _______. _______ is the joining of two gametes called sperm and egg. A fish that lays her eggs in a cluster is initiating _______ fertilization. _______ are an adaptation by reptiles to allow for reproduction and embryo development on land. Describe three different strategies used by three different animals to thermoregulate. If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
Answers
The brain and spinal cord are part of the central nervous system.
The electrical charges that act as nervous signals are called action potentials or nerve impulses.
Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.
After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.
Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.
Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.
Muscles move endo- and exoskeletons by contracting and relaxing.
Fertilization is the joining of two gametes called sperm and egg.
A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.
Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.
Describe three different strategies used by three different animals to thermoregulate.
Elephants: Elephants thermoregulate by using their large ears as cooling devices. They flap their ears to increase surface area and enhance heat loss through evaporative cooling.Desert Lizards: Desert lizards employ behavioral thermoregulation by basking in the sun to absorb heat and warming their bodies. They also retreat to shade or burrows to avoid excessive heat when needed.Penguins: Penguins have a unique thermoregulation strategy. They huddle together in large groups to conserve body heat and shield themselves from the cold Antarctic winds, effectively reducing heat loss and maintaining body temperature.If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.
Answer:
1. central
2. action potential
3. nerve net
4. dorsal
5. hydrostatic
6. Exoskeletons
7. contraction/contracting
8. Fertilization
9. external fertilization
10. Eggs
11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.
12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.
The diagram illustrates the foraging distribution of three different species of waterfowl in a pond and surrounding wetland areas.
Which statement accurately explains the phenomenon shown in the illustration?
Answers
Answer: C) Each species evolved a unique foraging area as a natural result of competition.
Explanation: i just took the test
Match the signs of development with the appropriate trimester.
Fingerprints have developed.
The fetus can hear and see.
The heart beats for the first time.
Nerve cells have developed.
The sex can be determined.
Fat begins to develop.
The fetus starts to move.
Answers
Answer:
Fingerprints have developed - Second Trimester
The fetus can hear and see - Third Trimester
The heart beats for the first time - First Trimester
Nerve cells have developed - First Trimester
The sex can be determined - Second Trimester
Fat begins to develop - Third Trimester
The fetus starts to move - Second Trimester
Explanation:
Please select the word from the list that best fits the definition
Principle that involves an attempt to understand the meanings individuals attach to their actions.
Answers
Verstehen is the principle which involves the attempt for the understanding of the meanings individuals attach to their actions.
Principle that involves an attempt to understand the meanings individuals attach to their actions.?This idea is based on the German philosophical notion of Verstehen, which also serves as the foundation of sociology as a field of study of people and their behaviour.
The word itself exhibits the quality of deeply understanding something, which makes the method appropriate for sociologists and turns it into a means of learning about people and the acts that they take.
Weber suggested doing this, when one tries to put themselves in other people's shoes and see things from their perspective. The concept and practise of verstehen is today recognised as being essential to rejecting positivist social science (although Weber appeared to think that the two could be united). Understanding the purpose of an action is referred to as verstehen.
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The idea of comprehending the meanings people give to their acts is known as verstehen.
What is verstehen principle?A philosophy that makes an effort to comprehend the meanings people give to their activities.
This approach is based on the idea of Verstehen from German philosophy, which also serves as the basis for sociology as a discipline that studies people and their behavior.
The approach is excellent for sociologists because the word itself conveys the quality of deeply comprehending something, which transforms it into a way of learning about people and the actions they take.
When one tries to put themselves in other people's shoes and see things from their perspective, Weber advised doing this. Today, the idea of comprehension and its application are recognized as
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How does DNA determine an organism’s traits
Answers
Answer:
Traits are determined by genes. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.
What happens in the energy harvesting phase of glycolysis?
O Glucose is transformed into fructose diphosphate.
O Fructose diphosphate splits into two 3-carbon molecules.
O ATP molecules are broken down to ADP and a phosphate group.
O Glyceraldehyde 3-phosphate is converted into pyruvate.
Answers
The energy payoff phase of glycolysis consists of five additional steps and results in the formation of four ATP, two NADH + H+, and two pyruvate molecules. Substrate level phosphorylation is the process by which ATP is produced from the transfer of a phosphate group from a substrate molecule in a metabolic pathway.
Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons. The vast majority of creatures on the planet today use glycolysis, which is an old metabolic route that originated long ago. 2,3 2,3 start superscript, 2, comma, 3, end superscript
Glycolysis is the initial step in the process of cellular respiration in organisms. However, many anaerobic organisms—organisms that do not use oxygen—also contain this route since glycolysis does not require oxygen.
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Which best describes the process of peer review ?
Answers
Answer:
Scientists examine each other's work often to make sure it is not biased or unreliable. this makes for a group effort and reliable information.NOT JUST SCIENCE
Many fields outside of science use peer review to ensure quality.
Explanations : Peer review is the process of peers in the field of the work review the work and give opinion of it
Do eukariota cells have mitochondria?
Answers
Do Eukaryotic Cells have Mitochondria?
The answer is YESIn addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes.
What is a Eukaryotic cell?
A eukaryotic cell is one of two different types of cells. Organisms that are based on the eukaryotic cell are called “eukaryotes” and include plants, animals, fungi, and protists.
What is Mitochondria?
The mitochondrion (plural mitochondria) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. It is the power house of the cell; it is responsible for cellular respiration and production of (most) ATP in the cell. Each cell can have from one to thousands of mitochondria. Mitochondria also contain extranuclear DNA that encodes a number of rRNAs, tRNAs, and proteins.
Write a lab report for this lesson’s lab. Be sure that your report:
includes all major elements of a lab report.
meets your teacher’s content and format expectations.
is clearly organized and formatted.
demonstrates strong scientific reasoning and writing
this is about : Building Proteins from RNA
Answers
Hello. It is not possible to make a report of your class in the laboratory, without having attended that class. For this reason, I will show you how this report can be written. I hope it helps you.
You should start your report with an introduction. This will be a short paragraph, where you will present the laboratory where the class was held, the time and date. Then you will give a brief presentation of what was observed during that class.
In a second paragraph, you will start by explaining better, all the elements of the class, what was discussed and what equipment was used. You should also show all the activities done in the laboratory in the most detailed way possible. This paragraph can be divided into more than one paragraph, if you have a lot of information to tell.
Finally, you should end the report with a conclusion, showing what you have learned from this experience.
6. How is a cell membrane similar to the dialysis tubing used in this experiment?
Answers
Which factor does not affect species richness on islands?
Age of island
Geographical location
Habitat size
Island shape
Question 2(Multiple Choice Worth 3 points)
(02.02 MC)
Which combination of factors will result in an island community with the lowest ecological tolerance?
Upwelling of colder ocean water, increased sunlight
Introduction of invasive species, increased freshwater sources
Increased human population, increased agricultural expansion
Increased colonization, decreased extinction rate
Question 3(Multiple Choice Worth 3 points)
(02.02 MC)
The table depicts characteristics of five amphibian species (A–E). Use the information in the table to answer the following question:
Ecological Parameter Species A Species B Species C Species D Species E
Temperature Range 15–30 °C 10–40 °C 15–20 °C 10–30 °C 15–25 °C
Freshwater or Brackish Water Fresh/brackish Brackish Brackish Fresh Fresh/brackish
Food Sources Varied Two mainland species of grasshopper Only island arthropods Varied Varied
Habitat Lakes Estuaries/ponds Estuaries/ponds Lakes Lakes
Which individual(s) of the species listed in the table would likely die if moved to a new island habitat?
Species C and E
Species A and C
Species A only
Species B only
Question 4(Multiple Choice Worth 3 points)
(02.02 LC)
Island biogeography studies the ________ on islands.
mountain topography
natural disasters
distribution of species
climate change
Question 5(Multiple Choice Worth 3 points)
(02.02 MC)
Increased deforestation reduces the habitat for an arthropod species preferred by an island reptile. Which of the following descriptions predicts the most likely outcome for these two species?
The reptile population increases as arthropods are confined to smaller sections of the island.
The reptile population decreases as arthropods decrease with their habitat.
Island arthropods decrease as the reptile population increases.
Island arthropods and reptiles both increase in the island habitat.
Question 6(Multiple Choice Worth 3 points)
(02.02 MC)
Which statement describes a factor in the island biogeographical model?
Dispersing species are more likely to find smaller secluded habitats
Smaller populations are less likely to go extinct
Large islands have less available niches for immigrating species
Islands closer to the mainland have greater colonization
Question 7(Multiple Choice Worth 3 points)
(02.02 LC)
Which of the following ideas helps explain the factors that affect island colonization of and species richness for a region?
Species-area effect
Rescue effect
Target effect
Time/stability hypothesis
I and II
II and III
I, II, IV
I, II, III, IV
Answers
Answer:
1. Island Shape
2. Increased human population, increased agricultural expansion
3. Species B only
4. distribution of species
5. The reptile population decreases as arthropods decrease with their habitat.
6. Islands closer to the mainland have greater colonization
7. I, II, III, IV
Explanation:
I took the test, can I get brainliest?
1 ) Island shape does not affect species richness on islands. Thus, option D is correct for question number 1.
2) Increased human population is the combination of factors that will result in an island community with the lowest ecological tolerance. Thus, option C is correct for question number 2.
3) The answer is species B only as they would likely die if moved to a new island habitat. Thus, option D is correct for the question number 3.
4)Island biogeography studies the distribution of species on islands.Thus, option C is correct for question number 4.
5)Increased deforestation reduces the habitat for an arthropod species preffered by an island reptile. Therefore the reptile population decreases as arthropods are confined to smaller sections of island. Thus option B is correct for question number 5.
6) The statement islands closer to the mainland have greater colonization is best to describe the factor in the island biogeographical model. Thus, option D is correct for question number 6.
Therefore, Island shape does not affect species richness on islands. Thus, option D is correct for question number 1.
Increased human population is the combination of factors that will result in an island community with the lowest ecological tolerance. Thus, option C is correct for question number 2.
The answer is species B only as they would likely die if moved to a new island habitat. Thus, option D is correct for the question number 3.
Island biogeography studies the distribution of species on islands.Thus, option C is correct for question number 4.
Increased deforestation reduces the habitat for an arthropod species preffered by an island reptile. Therefore the reptile population decreases as arthropods are confined to smaller sections of island. Thus option B is correct for question number 5.
The statement islands closer to the mainland have greater colonization is best to describe the factor in the island biogeographical model. Thus, option D is correct for question number 6.
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Where are the A, B and RH antigens located
Answers
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
MULTIPLE CHOICE QUESTION
Some cell types divide more often than other cell
types.
False
True
Answers
What conclusions can you make
about who might have been at the
scene of Anna's death? Explain.
Answers
Why does clearing land for farms alter the carbon and oxygen balance in the atmosphere?
Plants around the cleared area produce more oxygen than normal.
It causes the remaining plants to take in an increased amount of carbon dioxide.
There are fewer plants to absorb carbon dioxide from the atmosphere.
Clearing land releases carbon dioxide from the soil.
Answers
Answer:
There are fewer plants to absorb carbon dioxide from the atmosphere.
Explanation:
i did the test
which of the following is not a method of replicating pores? stippling moist ligature lintless gauze coarse- textured paper hand towel prev submit
Answers
The method of not replicating pores that is listed in the options provided is: stippling.
What are the methods of replicating pores?Replicating pores, which refers to the process of creating a replica or copy of a porous surface. Moist ligature is a method of replicating pores in which a moistened piece of thread or string is pressed against the surface to be replicated. Lintless gauze is a type of fine, smooth gauze that can be used to replicate pores by pressing it against the surface. Coarse-textured paper or a hand towel can also be used to replicate pores by pressing them against the surface.
Stippling, on the other hand, is a technique used to create a textured or dotted effect in art or design. It involves the use of small, repeated dots or strokes to create a visual texture or pattern. While stippling can be used to replicate some types of textures, it is not typically used to replicate pores in scientific or technical contexts.
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You would like to repeat the experiment in which you trigger action potentials while changing the extracelluar fluid surrounding the cell. Which of the following experiments would help confirm that CA2+ is responsible for the deplorization phase action potential?
A. bathe the cells in a fluid from which all Ca2+ has been removed (zero-Ca2+ medium) and add lanthanum
B. which blocks Ca2+ channels
C. to the extracellular fluid
Answers
Option A is Correct. Add lanthanum fluid after placing the cells in a solution that has had all of the Ca2+ removed (zero-Ca2+ media). The experiments that come after will help demonstrate that CA2+.
This cause of the action potential during the deplorization phase. You would like to repeat the experiment where extracellular action potentials are created while the extracellular fluid surrounding the cell is changed. Action potentials are produced when certain ions pass the neuronal membrane.
A stimulation causes the sodium channels to initially open. Sodium ions rush inside the cell because the interior of the neuron is more negatively charged than the exterior and contains a greater number of sodium ions. The neuron depolarizes (2) after the action potential is triggered, activating sodium.
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The feeling of being in a forest of trees that are some of the biggest and oldest creatures ever to live on the planet is known as a(n) __________ ecosystem service.
Answers
A biophilia ecosystem service is the sensation of being among a forest of trees, some of the largest and oldest organisms to have ever existed on Earth. Edward O. Wilson, a biologist and naturalist, invented the word "biophilia" to explain how people are inherently drawn to the natural world.
The advantages individuals experience from being in a natural setting include bettering their physical and mental health, increasing their creativity and productivity, and feeling more content.
These advantages are referred to as "biophilia ecosystem services." In this aspect, trees are especially crucial since they offer a range of ecosystem services including clean air, water filtration, and wildlife habitat.
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A student hypothesized that EC growth might be affected by the DNA from circulating erythrocytes. Is this student’s hypothesis reasonable?
Answers
Answer: The options are not given, here are the options.
A) No the DNA in circulating erythrocytes ins needed to help transport O2 through the capillaries
B) No circulating erythrocytes contain DNA.
C) Yes DNA is responsible for cell division in most cells
D) Yes circulating erythrocytes carry DNA nutrients through the capillaries
The correct option is B.
No circulating erythrocytes contain DNA.
Explanation:
Erythrocytes or red blood cells is a biconcave disc that contain haemoglobin which help to carry oxygenated blood in the body.
Circulating erythrocytes do not contain dna because they lack nuclei and organelles, cannot synthesize any RNA, therefore cannot divide and have limited repair capabilities.
Because they cannot carryout protein synthesis, no virus can evolve and invade the red blood cells.
QUESTION 9
At which stage of mitosis do chromosomes line up at the equator (middle) of the cell?
anaphase
metaphase
telophase
prophase
Answers
Answer:
I think prophase. Correct me please.
Answer:
the correct answer be "Metaphase"
Which Describes Evolution?
A. a difference in the traits of the members of a species
B. a variation that is beneficial to a Species
C. a change in a species that helps it survive and reproduce
D. a gradual change in a species over time