Answers
Answer:
All organic compounds contain CARBON AND HYDROGEN. carbon atoms have FOUR valance electrons so it can bond with TWO other atoms.
(I am also not sure that it 100% two but that is what I think.)
Answer:
Carbon and Hydrogen
Explanation:
carbon atoms has four valence electrons meaning that it can bond with two others
Related Questions
Clear selectic 5 po 14. A group of high school students wanted to use a decibel meter to test whether or not their classroom was noisier when their science teacher left the room. What is the dependent variable?
a. The amount of noise
b. Whether or not the science teacher left the room or not.
c. The type of students presents in the room.
d. The decibel meter
Answers
Answer:
a.The amount of noise
Explanation:
The dependant variable is the variable that changes when the science teacher leaves.
Independant variable would most likely be whether or not the science teacher is in the room.
Hope this helps!
This diagram shows cellular activity across a cell membrane.
Glucose in high concentrations
outside the cell
Cell membrane
Glucose in low concentrations
inside the cell
Which two processes does this diagram most directly model?
O Energy conversions and synthesis of new molecules
O Synthesis of new molecules and homeostasis
O Transport of molecules and energy conversions
O Homeostasis and transport of molecules
Answers
Answer:
Energy conversions and synthesis of new molecules
The two processes that are shown in the image are the transport of molecules and energy conversions. Therefore, option C is correct.
The transport of molecules and energy conversions through the cell membrane are vital processes for the functioning of cells. The cell membrane is also known as the plasma membrane. It acts as a selective barrier that regulates the passage of substances in and out of the cell.
The cell membrane also plays a role in energy conversions. For example, during cellular respiration, the inner membrane of mitochondria (which are organelles within the cell) is involved in the electron transport chain. Thus, option C is correct.
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Which conclusion do the data support?
Answers
Answer:
A
Explanation:
Using the base-paring rules, fill in the bases to be found on the complementary RNA strands, then write out the amino acid sequence from the following mRNA strands:
DNA: A-G- G- C- C- T- G- C- T- T- A-C
mRNA:
tRNA:
Amino Acids:
Answers
The full amino acid sequence from the given mRNA strand would be: serine-glycine-arginine-asparagine. A pairs with U (uracil) and C pairs with G (guanine). So the complementary RNA strand to the given mRNA strand would be: U-C-C-G-G-A-C-G-A-A-U-G.
Using the genetic code, we can translate the mRNA sequence into an amino acid sequence. The genetic code is read in groups of three nucleotides (called codons), and each codon corresponds to a specific amino acid. Here is the amino acid sequence that corresponds to the given mRNA strand:
U-C-C: serine
G-G-A: glycine
C-G-A: arginine
A-A-U: asparagine
The base-pairing rules and the genetic code, as well as the steps to determine the complementary RNA strand and amino acid sequence.
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What are the landmasses surrounding the Philippines?
Answers
Answer:
Eleven islands make up 95 percent of the Philippine landmass, and two of these — Luzon and Mindanao — measure 105,000 square kilometers (40,541 sq mi) and 95,000 square kilometers (36,680 sq mi), respectively.
\( \\ \\ \\ \)
Answer:
11 islands and beaches in the Philippines not to be missed
Corregidor Island.
El Nido and the islands of Bacuit Bay, Palawan.
Boracay.
Bohol.
Siargao, Mindanao.
Camiguin, Mindanao.
Tubbataha Reef, Palawan.
Pamalican, Palawan.
Two organisms are shown in the diagram below.
The arrows in the diagram indicate structures that help these organisms
A. detect changes in their environments.
B. move through their environments,
C. obtain nutrients from their environments,
D. exchange gases with their environments,
Answers
Answer:
D
Explanation:
Answer:
D
Explanation:
That's what a cell membrane and gills are used for
what is mean by absorpstion
Answers
Ok, Im sorry but this drives me insane, so im only answering it because it drives me nuts.
Anyways.. Absorption is when something such as a towel or paper is absorbing or taking in the liquid that its on or near such as water or juice. Or how the dictionary has it, "the process or action by which one thing absorbs or is absorbed by another."
Which scientist was a Navy Officer in World War 2 and used sonar on his battleship to map the ocean floor?
Harry Hess
Abraham Ortelius
Arthur Holmes
Alfred Wegener
Answers
Explain how the overuse of chemical fertilizers and pesticides affects aquatic environments.
Answers
The overuse of chemical fertilizers and pesticides has significant negative impacts on aquatic environments. When these chemicals are applied to farmlands or other areas near water bodies, they can be washed off by rainwater or irrigation and enter into rivers, lakes, or oceans.
Here are some ways how overuse of chemical fertilizers and pesticides affect aquatic environments:
Eutrophication: Chemical fertilizers contain high levels of nitrogen and phosphorus, which promote the growth of algae and other aquatic plants. When excess nutrients from fertilizers enter water bodies, they can cause eutrophication - a process where excessive plant growth leads to oxygen depletion in the water. This can kill fish and other aquatic organisms.
Water contamination: Pesticides and fertilizers contain toxic chemicals that can contaminate water bodies. These chemicals can be harmful to aquatic organisms and can accumulate in the food chain, causing long-term damage to the ecosystem.
Altered aquatic food chain: The use of pesticides can kill beneficial insects like pollinators and other insects that are food for aquatic animals. This can have a domino effect on the aquatic food chain and lead to a decline in fish populations and other aquatic organisms.
Harmful algal blooms: Fertilizers can increase the growth of harmful algal blooms, which can release toxins that can be harmful to aquatic organisms and even humans who come in contact with the water.
In summary, the overuse of chemical fertilizers and pesticides can have severe impacts on aquatic environments. It can cause eutrophication, water contamination, alteration of the aquatic food chain, and harmful algal blooms, all of which can harm aquatic organisms and lead to long-term damage to the ecosystem.
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I added a picture it’s simple plz help
Answers
Answer:
The higher the density, the more closely packed the particles called atoms and molecules. The lower the density the more spaced muy the particles are
If density = mass divided by volume, than the more volume a material has the less dense it is. For example, if there are five people in a room that is 5ft. by 5ft. the people will be tightly packed together and more dense. If those same five people were in a room that is 20ft. by 20ft. they would have more space and it would not be as dense in the room.
a substance that releases hydoxyl and a water is.
Answers
Answer:
A base is a substance that releases hydroxyl ions (OH-) when in solution. ... Acids, bases and salts, dissociate (separate) into electrolytes (ions) when placed in water.
Explanation:
Have a nice day :)
how are the functions of the lac repressor and trp repressor similar to each other, and how are they different?
Answers
The lac repressor and trp repressor are both DNA-binding proteins that play crucial roles in gene regulation. Both repressors bind to specific DNA sequences and prevent transcription of nearby genes. However, their mechanisms of action differ.
The lac repressor blocks transcription by physically obstructing the RNA polymerase enzyme, while the trp repressor inhibits transcription by preventing the binding of RNA polymerase to the promoter region. The two repressors also respond to different environmental stimuli. The lac repressor is activated in the presence of lactose, while the trp repressor is activated by the absence of tryptophan.
Additionally, the genes regulated by these repressors are different. The lac repressor regulates genes involved in lactose metabolism, while the trp repressor regulates genes involved in tryptophan synthesis. Despite these differences, both repressors play important roles in maintaining cellular homeostasis by ensuring that genes are only expressed when necessary.
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Which of the following would you expect to have the least effect on hematocrit percentage?
A) prolonged or excessive fever
B) living at higher altitude
C) dehydration
D) injection with erythropoietin (EPO)
Answers
You have been assigned to address a problem of overpopulation of species X in a nearby county. One of the members of your team suggests introducing species Y, which is a natural predator of species X, but not normally found in the area. After some discussion, you go ahead and introduce species Y. What aspects of the hierarchical organization may be affected within a period of a several years
Answers
Introduction of a natural predator of species X, which is not normally found in the area, may have various impacts on the hierarchical organization, such as the ecosystem, community, population, and individual level.
Introduction of a natural predator may alter the balance of species in the ecosystem. By removing species X from the population, it will impact other organisms that are dependent on the species X for food or habitat. Therefore, the food web and energy flow in the ecosystem may be affected.The introduction of species Y may result in competition for resources between species X and Y, which could decrease the population size of species X.
This could lead to a decrease in population density or abundance, or a shift in the age structure or sex ratio. The population of species Y may also increase if food is abundant and competitors are absent. The sudden increase in the population of species Y could result in an imbalance of predators and prey, which may affect the community structure of the ecosystem.
Species X may evolve or adapt in response to the introduction of species Y. The population may change in terms of its genetic composition, morphology, behavior, or physiology. The selective pressure imposed by the predator may result in the survival of individuals with traits that make them less susceptible to predation. This could alter the dynamics of the population or ecosystem.
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Questions are in the attachments I’ll give a brainlist
Answers
cleavage
in cleavage there is division of cell without growth of cell
11. Air quality measures
Answers
Suggest two reasons why a person aged 16–49 years might not be using contraception.
Answers
Answer and Explanation:
The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.
#teamtrees #PAW (Plant And Water)
PLEASE IF ANSWER CORRECT WILL MARK BRAINLEST!!! Please due right now A car engine uses the combustion of fuel to move a system of gears that move its wheels. Not all of the fuel's energy is transferred to the wheels Which two options describe what happens to the rest of the energy?
A. Some energy is lost because it is transformed into chemical energy B. Some energy is lost because of the heat produced by the engine C. Some energy is lost because of friction in the car's moving parts
D. Some energy is lost because of the weight of the car
E. Some energy is lost because it is transformed into potential energy
TWO ANSWERS
Answers
Answer:
B & C
Explanation:
What event is NOT part of the process of DNA replication?
Group of answer choices
Ribosomes are constructed
Hydrogen bonds are broken by an enzyme
The strands are proofread for errors
Complementary base pairs are formed from free floating nucleotides
Answers
the third one the one that says the strands thing
4. How does humidity affect the Transpiration Rate' ?
Answers
Answer:
if humidity increases, the space in air will be less and so the transpiration rate will decrease and vice versa, as they are inversely proportional.
Answer:
We do not let it happen we always end stopping the process.
Explanation:
Define Translocation
Answers
Biologycally it is when two chromosomes switch place or sometimes break of and switch position transferring their location.
What must cardiac muscle not have?
Answers
Cardiac muscle, also known as the heart muscle, must not have the ability to fatigue easily or stop contracting. This is because the heart needs to continuously contract in order to pump blood throughout the body.
Additionally, cardiac muscle must not have the ability to generate action potentials spontaneously, as this could disrupt the coordinated contractions of the heart and potentially lead to irregular heartbeats or arrhythmias. Finally, cardiac muscle must not have the ability to regenerate easily, as damage to the heart muscle can have serious and potentially life-threatening consequences.
This is because the heart needs to maintain a regular rhythm of contraction and relaxation to effectively pump blood throughout the body. If cardiac muscle experienced complete tetanus, it would not be able to perform its vital function of pumping blood, which could lead to life-threatening consequences.
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Mitochondria and chloroplasts have their own unique dna. Ribosomes in mitochondria and chloroplasts are similar to those in bacteria. Mitochondria are formed by binary fission. These statements together form the basis of what theory?.
Answers
Answer:
tydoysud8r6so5iaritskkys
The enzyme catalase is found in lettuce leaves.
A student investigated the activity of this enzyme by grinding some lettuce leaves and adding them
to a solution of hydrogen peroxide. The volume of oxygen produced was measured until the reaction
stopped.
Answers
When catalase is introduced to hydrogen peroxide, a fast evolution of oxygen occurs for roughly two minutes, depending on the peroxide concentration.
Following that, oxygen is released at a constant rate that gradually drops over an hour. This drop in rate is unquestionably caused by enzyme breakdown, and numerous kinetic models have been established to account for it. The quick development and stable pace, on the other hand, are fundamental characteristics of peroxide disintegration.
The reactants enzyme catalase and hydrogen peroxide stimulate this reaction.
a) The volume of oxygen grows over time until it hits a plateau, or we may say that the generation of oxygen increases fast at first, then slows down and remains constant until the reaction ends.
b) The shape is, complementary / AW; any reference to lock and key; product(s) / oxygen and water, created and exits the enzyme; AVP.
If the shape is the same, answers in the context of catalase speed up the reaction'. A product and an enzyme are separated, e.g., the enzyme can work again / the enzyme is not used up / the enzyme is not modified during the reaction / the activation energy is reduced.
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Complete Question
a) Explain the findings
b) Explain how enzymes work during a reaction.
which hormone released by the highlighted structure stimulates the release of tsh from the anterior pituitary (adenohypophysis)?
Answers
A The hypothalamic-pituitary axis regulates the release of TSH via hypothalamic neurons that secrete thyroid-releasing hormone (TRH), a hormone that stimulates thyrotrophs in the anterior pituitary to secrete TSH.
TSH synthesis in the anterior pituitary is stimulated by thyrotropin-releasing hormone (TRH) and inhibited by thyroid hormone in a classic endocrine negative feedback loop. The hypothalamic-pituitary axis regulates the release of TSH. Specifically, neurons in the hypothalamus release TRH, or thyroid-releasing hormone, which stimulates the thyrotrophs in the anterior pituitary to secrete TSH. Your hypothalamus releases thyrotropin-releasing hormone (TRH), which causes your pituitary gland to release thyroid-stimulating hormone (TSH). ), which stimulates the thyroid to release T3 and T4. Thyrotropin-releasing hormone (TRH) from the hypothalamus stimulates the anterior pituitary to release thyroid-stimulating hormone (TSH),synthesize and release thyroid hormones (T3 and T4)
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Find the area inside the cardioid =6−4cos(theta).
Answers
Numerous natural formations display the cardioid shape, which has biological relevance, which is determined by the equation r = 6 - 4cos().
The form of some animal hearts, including those of some cephalopods and sea gastropods, is one striking example. These species' cardioid-shaped hearts have developed to help them efficiently pump blood throughout their bodies. Their physiological demands are supported by the high blood flow that is maintained by the cardioid shape's narrowing apex. Additionally, certain flower species, such as several cyclamen species, have a cardioid-like arrangement of their petals. By offering an ideal landing site, its design helps to draw pollinators. The cardioid shape thus exhibits functional modifications for circulation and reproduction in biology.
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--The complete Question is, What is the biological significance of the cardioid shape in nature? Explain any patterns or phenomena observed in biological structures that resemble or approximate a cardioid shape. How does the equation for the cardioid, given as r = 6 - 4cos(θ), relate to these biological structures? Discuss any potential implications of the equation for understanding the functions or adaptations of organisms that exhibit cardioid-like structures. Provide examples of organisms or biological systems where the cardioid shape is prominent and explain how this shape benefits their survival, reproduction, or other biological processes. --
an implanted device that regulates cardiac electrical activity is called a (n)
Answers
The implanted device that regulates cardiac electrical activity is called a cardiac device. It is categorized into three different types: pacemakers, (ICDs), and (CRT) devices
What is a cardiac device?
Cardiac devices are medical devices that are implanted inside the patient's chest to regulate cardiac electrical activity. The cardiac devices are designed to treat irregular heartbeats and are used to treat arrhythmias, heart failure, and other heart-related conditions. Cardiac devices are categorized into three different types, which include pacemakers, implantable cardioverter defibrillators (ICDs), and cardiac resynchronization therapy (CRT) devices.
Pacemakers: A pacemaker is a device that is implanted under the skin in the chest to regulate the heartbeat. It uses electrical impulses to make the heart beat at a steady rate. The pacemaker is designed to treat bradycardia, which is a slow heart rate.
ICDs: An implantable cardioverter defibrillator (ICD) is a device that is used to treat ventricular fibrillation and ventricular tachycardia. The ICD is implanted under the skin in the chest, and it uses electrical impulses to shock the heart back into a normal rhythm.
CRT devices: Cardiac resynchronization therapy (CRT) devices are implanted in the chest to treat heart failure. The CRT device uses electrical impulses to synchronize the contractions of the heart's chambers to improve the heart's pumping ability.
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Select the methods and results that best illustrate sustainable crop intensification.
GMO drought-tolerant seeds
low pesticide use
high-yield, low ecological impact
heavy use of irrigation
low cost
high cost
high use of synthetic fertilizer
high labor
Answers
Answer:
GMO drought-tolerant seeds, high use of synthetic fertilizer, high-yield, low ecological impact.
Explanation:
Crop rotation is one of the most powerful techniques of sustainable agriculture. Its purpose is to avoid the consequences that come with planting the same crops in the same soil for years in a row. It helps tackle pest problems, as many pests prefer specific crops.
Select the correct answer.
Rachel is learning about ocean currents. She asked her teacher the cause of Coriolis effect. What should the teacher answer?
A The Coriolis effect occurs due to the Earth's rotation
B. The Coriolis effect occurs due to friction between wind and water.
C. The Coriolis effect occurs due to the Earth's gravity.
D. The Coriolis effect occurs due to moon's gravitation force.
Answers
Answer:
A
Explanation:
Earth's rotation is the main reason for the Coriolis effect. The effect deflects anything that flies or flows over a long distance above the ground, proportionate to Earth's spin direction. Even storms can be a result of the rotation; hence, they do not form similarly everywhere on Earth.
(Hope this helps have a great day!)
Answer:
A. The Coriolis effect occurs due to the Earth's rotation.
Explanation:
I got it right on the test (;
What is a tornado? Describe in 5 sentences at least, in your own words.
Answers
Answer:
a tornado is a very destructive cloud that destroys things bring a lot of damage and harm to everybody where that tornado is located
Explanation:
Answer:
A tornado is a dangerous natural disaster. Tornados are formed by air from one side and the other by merging into eachother and they will start rotation like a cyclinder. the more the air is narrow and streached the faster it gets. these can go up to 300 mph. they can destruct any type of building, trees or vehicles miles away.
Explanation: