Which of the following is true of a nerve fiber at rest?
A. the neuron has more Na+ ions outside the cell and more K+ ions inside the cell.
B. the neuron has more K+ ions outside the cell and more Na+ ions inside the cell.
C. there is an even distribution of K+ and Na+ ions inside and outside the cell.
Answers
Answer:
C
Explanation:
C. there is an even distribution of K+ and Na+ ions inside and outside the cell.
Related Questions
The main difference between the four nucleotides that make up DNA is that they have different
sugars.
uracil.
bonds.
bases.
Answers
Answer: the answer is sugars
Explanation:
The basic building block of DNA is called a NUCLEOTIDE. A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.
The protein derived from a particular gene is different when it is found in a neuron than in a muscle cell. This is most likely due to
Answers
The protein derived from a particular gene is different when it is found in a neuron than in a muscle cell. This is most likely due to alternative mRNA processing.
What is muscle cell?Since cardiac muscle cells and smooth muscle cells are both tiny cells, a muscle cell is also referred to as a myocyte. Muscle fibers are the long, threadlike cells of skeletal muscle that have several nuclei. Myoblasts, embryonic precursor cells, are the source of muscle cells.Muscle tissue contains the contractile proteins myosin and actin.The three different types of muscle tissue are cardiac muscle tissue, smooth muscle tissue, and skeletal muscle tissue. Skeletal muscle fibres are striated, multinucleated, cylindrical, and voluntarily regulated. Myocytes, often known as muscle cells, are the cells that make up muscle tissue.The human body contains three different types of muscle cells: cardiac, skeletal, and smooth. Due to their lengthy and fibrous nature, cardiac and skeletal myocytes are commonly referred to as muscle fibers.
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American apple cells contain an enzyme that turns the tissues brown when an apple is peeled and left for a time. Boiled apple does not go brown. Explain why the boiled apple behaves differently.
Answers
Answer:
I think I got it from recipetips.com
When cooking apples it is not as much of a concern because once they are cooked, the browning will stop. When fresh apples are peeled or cut open, the apple's cells are exposed and react with the oxygen in the air. The reaction that occurs, which is called oxidation, is what turns the apple brown.
Explanation:
Enzymes are proteins. As such they are very specific. When the apple is boiled, the enzyme becomes denatured and as such doesn't turn the apple brown.
What is the purpose of a dichotomous key? (Select all that apply.)
to find a common ancestor
to identify organisms
to show the evolution of organisms
to show evolutionary relationships between organisms
MORE THAN ONE COULD BE THE ANSWER!!
Answers
Another one you could go with
D. To show evolutionary relationships between organisms
Brainliest? Have a great day/night
a) Which country looks like it is experiencing exponential growth?
b) Which country looks like it has reached its carrying capacity?
c) Because it has reached its carrying capacity, describe the relationship between
its birth rates and death rates.
d) Describe what is happening to Europe's population size in terms of birth rates
and death rates.
e) Which country or countries could be experiencing:
emigration:
Explain your answer.
.
-immigration:
Explain your answer.
Answers
India has a sharp rising trend and a quickly growing population, so it appears to be growing exponentially. It seems that Japan's carrying capacity has been achieved.
How do population growth and carrying capacity relate to one another?Growing populations may be impacted by increased density in a given area. The greatest number of a species that an ecosystem can sustain is referred to as the carrying capacity of a region. Carrying capacity is based on the amount of resources available (food, habitat, water).
What are some examples of exponential population growth?The term for this quick trend of population rise is exponential expansion. The best illustration of exponential development is found in bacteria. Via prokaryotic fission, prokaryotes, such as bacteria, divide.
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in the 17,00s Isaac Newton determined that the force of gravity between two objects depends on the mass of the objects and distance between them. he reason that things Fall towards Earth because it has so much mass. then in 1900 Albert Einstein work with new discovery such as the fact that light always travels the same speed and he's determined a new explanation of how and why gravity works. Mass and distance still matter and Einstein's explanation but speed also matters. Newton's explanation still works for objects close to Earth but Einstein's explanation works for all objects in the universe.
what does this demonstrate about the nature of science?
a.When do scientist have different beliefs than older scientists they will research for new facts.
b.All scientists can observe the same facts and determine different explanations about them.
c.If scientists established explanation based on data then the explanations are true and do not need to be changed.
d. Scientistscientist make improved explanations by building on old ideas and working with new ideas.
Answers
all scientist can observe the same facts but come up with different explanation
Answer:
The correct answer is B. All scientists can observe the same facts and determine different explanations about them
What do the rod-like green structures within the Euglena allow the organism to do?
Answers
Answer:
A- use sunlight to make food
Explanation:
what are the limitations of electric impulse mechanism?
Answers
Answer:
The limitations that nerve impulses have are
Explanation:
1). The impulses can move only in one direction.This is because the nerves are structured to allow unidirectional flow.
2). The electrical impulses are quite short acting. The message is only sent in the presence of the stimulus.
Managing human consumption of natural resources so that these resources are not exhausted is called _____. multiple choice question. sustainability
Answers
Managing human consumption of natural resources so that these resources are not exhausted is called sustainability.
What is sustainability?Our natural environment influences everything we need for life and well-being, either directly or indirectly. Sustainability establishes and maintains the conditions necessary for humans and nature to coexist in a way that allows for the satisfaction of the social, economic, and other needs of both the present and the future generations. Sustainability encompasses more than just energy efficiency and renewable sources. Understanding the relationships between the economy, society, and the environment is necessary to achieve true sustainability. We must work to develop a mindset of sustainability that permeates all facets of our daily life in the local, national, and global spheres.
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What are 3 characteristics of a small shallow burn that indicate you should be seen by a doctor?
Answers
Answer:
The size of the burn. The cause (Thermal, Electrical, Chemical, Radiation, or Friction.) The part of the body where the burn occurred. The age and health of the burn victim
Explanation:
your welcome
Variables that change in this table are blank and blank
The variable that does not change in this table is blank
Answers
Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed.
What scientific evidence was used by Carl Woese to determine there should be a separate domain for Archaea
Answers
Answer:
"In the case of the Bacteria kingdom, ribosomal RNA uncovered the existence of two separate groups of bacteria, Eubacteria and Archaeabacteria. Although they looked similar on the outside, these two bacteria groups were very different on the inside. Archeabacteria differ from bacteria in cell membrane composition, DNA replication, and resistance to extreme environments. Archaea are prokaryotic, but they are not the same as bacteria. Archaea and bacteria have different cell membrane makeups and different systems for DNA replication."
Explanation:
That quote is from the flvs lesson. (:
Woese studied the genes of a large number of organisms.
In 1977, Woese published work showing that methane-producing microbes are not bacteria, but belong to an entirely new, third domain of life. Woese called this third domain the Archaea meaning ancient.What is Archea?Archaea are microorganisms that define the limits of life on Earth. They were originally discovered and described in extreme environments, such as hydrothermal vents and terrestrial hot springs. They were also found in a diverse range of highly saline, acidic, and anaerobic environments.To know more about archea domain here
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what is the importance of pheromone to termites?
Answers
Answer:
Pheromones are vital for termites as they enable communication, coordination, and organization within the colony. They help termites recognize colony members, establish foraging trails, signal alarm and danger, facilitate reproductive behavior, and maintain social cohesion. Pheromones play a crucial role in the efficient functioning and survival of termite colonies.
Hello!
Pheromones play an essential role in termite society. Termites are social insects that live in colonies. They communicate with each other by producing and sensing chemical signals called pheromones.
(10 points)
The diagrams below show some changes in an
environment over time.
(A)
(B)
(C)
Which phrase best describes this sequence of
diagrams?
(1) the path of energy through a food web in a
natural community
(2) the altering of an ecosystem by a natural
disaster
(3) natural communities replacing each other in
an orderly sequence
(4) similarities between an aquatic ecosystem
and a terrestrial ecosystem
(D)
r
Answers
Answer:
The correct answer is - (3) natural communities replacing each other in an orderly sequence
Explanation:
In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.
In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.
Using evidence from the video, describe three characteristics of life that Archaea bacteria have.
Answers
A image of Archaea micro organism within the video confirmed that the body is made of a unmarried cellular, and has a described boundary. Scientists also realize that it reproduces by transmitting its genetic facts because there's proof of Archaea genes in our DNA nowadays.
The three traits of lifestyles that Archaea micro organism have are:not unusual characteristics of Archae bacteria known to this point are: (1) the presence of a feature of tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan mobile partitions, in most instances, in preference to a huge protein-wealthy coat; (three) the formation of ether-related lipids formed through phytanyl chains.
what's the difference among micro organism and archaea micro organism?Like micro organism, archaea have no inner membrane however both have cellular partitions and use flagella for swimming. Archaea differs from the reality that their cell wall does not include peptidoglycan and that the cell membrane makes use of ether-linked lipids rather than an ester connected to lipids in micro organism.
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(Subject: Science) 1. Approximately how far away would the formation of Earth be if you used the scale from your timeline?
2. Which events helped life develop on Earth? Explain.
Answers
The formation of Earth took place roughly 4.54 billion years ago if we start with the universe's formation, which is thought to have happened around 13.8 billion years ago. Hence, based on this scenario, Earth's formation would have occurred roughly 4.54 billion years ago.
What process created the Earth?Over 4.5 billion years ago, when the solar system was still in its current configuration, the third planet from the Sun—Earth—was created when gravity drew spinning gas and dust in. Earth has a solid crust, a rocky mantle, and a central core, just like its sibling terrestrial planets.
Which events helped life develop on Earth? Explain.The emergence of life on Earth was influenced by a number of significant occurrences. Among the important occasions are: Oxygenation of the atmosphere, Origin of life, Formation of the oceans, Evolution of photosynthesis, and Mass extinctions.
What was the planet's first formation?According to current scientific theory, the Earth's history began approximately 4.6 billion years ago in a disk-shaped cloud of gas and dust orbiting around the young sun, which was composed of material left over from the sun's birth.
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Part I Illuminating Photosynthesis #1 : Fill in this concept map depicting the major steps in photosynthesis in the chloroplast H20 of Photosystem I transfers Word Bank Electron Transport Chain ATP Synthase Calvin Cycle Light NADPH Chlorophyll Protons CO2 Photosystem II Electrons 02 to produce ATP G3P (Sugar Building Block) #2 : Fill in the table: Major Steps in Does this step depend on Experimental variable to What would happen if an Photosynthesis any other step? How? measure? herbicide disrupted this Photosystem II Photosystem l ATP Synthase Calvin Cycle
Answers
Photosynthesis in chloroplasts involves major steps such as light absorption, electron transport, ATP synthesis, and carbon fixation. It begins with light-dependent reactions in photosystems I and II, followed by electron transport and ATP synthesis.
Step 1: Photosynthesis is a complex process that occurs in the chloroplasts of plants, involving several major steps such as light absorption, electron transport, ATP synthesis, and carbon fixation.
Step 2:Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. It occurs in the chloroplasts, specifically in three main stages: light-dependent reactions, electron transport chain, and the Calvin cycle.
During the light-dependent reactions, light energy is absorbed by chlorophyll molecules in photosystem II (PSII) and photosystem I (PSI). In PSII, water molecules are split, releasing electrons, protons (H+ ions), and oxygen. The electrons move through an electron transport chain, creating a proton gradient across the thylakoid membrane. This gradient is essential for ATP synthesis by ATP synthase, using the energy from the electron flow.
In PSI, electrons are re-energized by absorbing more light energy and are ultimately used to produce NADPH, another energy carrier. The ATP and NADPH generated in the light-dependent reactions are then used in the Calvin cycle.
The Calvin cycle, also known as the light-independent reactions or carbon fixation, occurs in the stroma of the chloroplast. It uses ATP, NADPH, and carbon dioxide (CO2) to produce glucose (G3P), which serves as a building block for sugars and other organic compounds. The cycle regenerates the starting molecule, ribulose bisphosphate (RuBP), allowing the process to continue.
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Which product is a source of energy that plants use to grow?
Answers
Answer:
photosynthesis
Explanation:
Describe the conditions that cause igneous rocks to form large grains
or no visible grains.
Answers
Answer:
Explanation: When magma cools slowly beneath Earth's surface, large grains are formed. When cooling happens SO quickly there are no visible grains.
Name of pathogens and the diseases they cause.
Tuberculosis, Syphilis, Anthrax, Human Cholera, Fowl Cholera, Salmonellosis, Typhoid fever, Typhus, Gastric ulcer, Diphtheria, Tetanus, Pertussis (Whooping cough), Sexually Transmitted Chlamydia Disease, Trachoma, Poliomyelitis, Rabies).
Answers
Tuberculosis: Caused by the bacterium Mycobacterium tuberculosis, it primarily affects the lungs but can also affect other parts of the body.
Syphilis: Caused by the bacterium Treponema pallidum, it is a sexually transmitted infection that progresses through distinct stages and can affect multiple organ systems if left untreated.
Anthrax: Caused by the bacterium Bacillus anthracis, it primarily affects livestock but can also infect humans through contact with contaminated animal products.
Human Cholera: Caused by the bacterium Vibrio cholerae, it leads to severe diarrhea and dehydration, primarily transmitted through contaminated water and food.
Fowl Cholera: Caused by the bacterium Pasteurella multocida, it primarily affects birds, especially poultry, leading to respiratory and systemic infections.
Salmonellosis: Caused by various Salmonella bacteria, it causes gastrointestinal illness, commonly transmitted through contaminated food.
Typhoid fever: Caused by the bacterium Salmonella Typhi, it causes a systemic infection with symptoms including high fever, abdominal pain, and gastrointestinal issues.
Typhus: Caused by various Rickettsia bacteria, it is transmitted through arthropod vectors and leads to fever, rash, and systemic involvement.
Gastric ulcer: Caused by the bacterium Helicobacter pylori, it contributes to the development of stomach ulcers and related gastrointestinal conditions.
Diphtheria: Caused by the bacterium Corynebacterium diphtheriae, it affects the respiratory system, producing a thick membrane in the throat that can obstruct breathing.
Tetanus: Caused by the bacterium Clostridium tetani, it leads to muscle stiffness and spasms, often resulting from contaminated wounds.
Pertussis (Whooping cough): Caused by the bacterium Bordetella pertussis, it is a highly contagious respiratory infection characterized by severe coughing fits.
Sexually Transmitted Chlamydia Disease: Caused by the bacterium Chlamydia trachomatis, it is a common sexually transmitted infection that can cause various complications if untreated.
Trachoma: Caused by the bacterium Chlamydia trachomatis, it is an eye infection and a leading cause of preventable blindness in developing countries.
Poliomyelitis: Caused by the poliovirus, it is a viral infection that affects the nervous system, potentially leading to paralysis.
Rabies: Caused by the rabies virus, it is a viral disease transmitted through the bite or scratch of an infected animal, leading to inflammation of the brain and spinal cord.
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PLEASE HELP I NEED AN ANSWER NOW!!!!
Imagine that you are an astronaut who is on the Moon for a lunar eclipse (completely in the umbra). What will you see when looking back at Earth? Why? Will you be able to see Earth? How will it look? Will you be able to see the Sun? How will it look?
Answers
Answer: During the lead-up to a solar eclipse from the Moon, a viewer on the Moon would see the Sun approach the dark disk of Earth, with the planet's nightside facing the Moon. Earth's atmosphere would be lit from behind, creating a reddish ring around the planet that would glow brighter as the eclipse proceeded.
Explanation:
The average speed of an object is the
Answers
B.) Distance Traveled by the object divided by the total time elapsed.
A bacterium containing ________ provided with hydrogen peroxide will produce oxygen bubbles.A) catalaseB) superoxide dismutaseC) superoxide reductaseD) peroxidase
Answers
A bacterium containing catalase provided with hydrogen peroxide will produce oxygen bubbles (Option A).
Catalase is an enzyme found in many bacteria and other organisms that catalyzes the breakdown of hydrogen peroxide into water and oxygen gas. When a bacterium containing catalase is provided with hydrogen peroxide, it will produce oxygen bubbles as a result of the breakdown reaction. Superoxide dismutase and superoxide reductase are enzymes involved in the detoxification of superoxide radicals, while peroxidase is an enzyme that catalyzes the oxidation of a substrate using hydrogen peroxide.
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rock fragments transported in a streambed
Answers
Rock fragments transported in a streambed are Sediment loads that are eroded by water(streams).
What sediments are carried by streams?Streams are among the most powerful surface agents for eroding rock and sediment. Waterborne rock fragments, gravel, and sediment have an impact. The total amount of sediment transported is referred to as the load. The river has three types of sediment load: dissolved, suspended, and bed load.
When rock fragments carried by the swift current collide with bedrock channel walls, they knock off rock chips. Bedload particles follow the flow of water by sliding or bouncing along the bottom. The portion of sediment transport that rolls, slides, or bounces along the bottom of a waterway is referred to as bedload.
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give me an example of an acute, obtuse, and right angle in real life....
Answers
Answer:
ummmm..... Ur moms legs opening wide
Explanation:
Answer:
A fat women she has all the angles in her
Explanation:
Which of the following human activities reduces biodiversity?
A. prohibiting hunting in wildlife preserves
O B. taking tissue samples from members of endangered species
O C. planting only native grass species to prevent erosion beside highways
O D. planting only red pine trees to replace native hardwood forests cut for lumber
Answers
Answer:
D. Planting only red pine trees to replace native hardwood forests cut for lumber.
Explanation:
I majored in Biology
Why do you think the Limestone Gorge has the lowest biodiversity index?
Answers
Answer:
a site with few potential niches where only a few species dominate
Answer:
Biodiversity refers to the number of biological species that exist in a given region. High biodiversity means that a region supports a wide variety of species, while low biodiversity implies that an area supports only a few.
Explanation:
have great day
How does the biodiversity of an ecosystem a response to environmental factors?
Answers
A diverse ecosystem have less death by a natural disaster, due to presence of more species have a chance not affected by a sudden climate change. On the other hand, if the ecosystem have 1-2 species ecosystem, slight change lead to half the population of the ecosystem
What is ecosystem ?An ecosystem is a structural and functional unit of where the living organisms and nonliving matter dwell with each other and with their surrounding environment, ecosystem was coined by A.G.Tansley, an English botanist, in 1935.
The structural composition of an ecosystem made up of Biotic Components and Abiotic Components, both the components are interrelated with each other in which the flow of energy and components occur.
Biotic components are living organisms are up classified into autotrophs, heterotrophs and saprotrophs where Autotrophs are the producers like plants make food by photosynthesis.
The heterotrophic organisms depend on other organisms for their food known as consumers can be classified into primary consumers, secondary consumers and tertiary consumers.
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Photosynthesis and cellular respiration both involve the use and release of gases. Which
statement correctly identifies the role of gases in the two processes?
F Photosynthesis and cellular respiration both use carbon dioxide and release oxygen.
G Photosynthesis and cellular respiration both use oxygen and release carbon dioxide.
H Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses
carbon dioxide and releases oxygen.
J
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses
oxygen and releases carbon dioxide.
Answers
Answer:
ftfttfrsqawsrdrdrt5dt
Explanation:
danggggggg this hardddd im in 7th
14) An environmental policy instrument, which has the lowest control and monitoring cost: a) BACT b) tradeable emission permits c) emission standards.
Answers
The environmental policy instrument with the least control and monitoring prices is option b) tradeable emission permits.
Cap-and-trade systems, commonly referred to as tradable emission permits, enable the distribution and selling of licences that signify the right to emit a specific quantity of pollutants. This approach places an overall cap on emissions, but specific businesses are free to buy or sell permits in accordance with their emission requirements.
Tradeable emission permits provide greater flexibility and reduced monitoring costs as compared to alternative choices like a) Best Available Control Technology (BACT) and c) emission standards.
While emission regulations necessitate constant monitoring to guarantee adherence to set emission limits, BACT necessitates comprehensive monitoring and enforcement to ensure compliance with specific emission reduction technologies.
Tradeable emission permits, however, are dependent on the market mechanisms and self-regulation, reducing the need for extensive monitoring and enforcement efforts.
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The environmental policy instrument that has the lowest control and monitoring cost is b) tradeable emission permits.
This can be classified as an example of the market-based approach to environmental regulation. An environmental policy instrument is a technique that governments utilize to influence human behavior concerning the environment. The following are three types of environmental policy instruments: Emission standards, Best Available Control Technology (BACT), and Tradable Emission Permits (TEP).
In the event that an organization or industry has an emission permit that is under their level of pollution output, it can trade the excess permit to different businesses in need of additional permits. Consequently, the framework guarantees that a similar amount of pollution is created, but this is done at a lower cost to the businesses. This trading system reduces the expense of compliance by allowing companies to choose whether or not to trade their emissions and how much to pay for the permits. Therefore, the tradeable emission permit instrument has the lowest control and monitoring cost.
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