In a homeostatic control mechanism, which of the following could serve as the integrating center (that is where decisions are being made)? Choose all of the correct answers.
The blood
The extracellular fluid
A single cell
The Golgi body of a cell
The brain
The brain
Answers
In a homeostatic control mechanism, the brain could serve as the integrating center (that is where decisions are being made).Homeostasis is the process by which an organism maintains its internal environment in a stable state, even as external conditions change.
Homeostasis is important since cells need a constant environment to function properly. Homeostasis involves keeping a variety of internal variables constant, including pH, temperature, water balance, and oxygen levels, among others. The Golgi apparatus or body is a cellular organelle that is responsible for modifying, sorting, and packaging macromolecules, such as proteins and lipids, for secretion by the cell or for use within the cell itself. The Golgi body plays a crucial role in homeostasis by maintaining a constant environment within the cell and allowing the cell to interact with its external environment.
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Related Questions
Place the events in order of what happens when a neuron fires an action potential.
a.The neuron begins to repolarize.
b.As the charge returns to the resting potential, the refractory period ends.
c.Ions rush into the cell via ion channels along its dendrites.
d.The voltage inside the neuron transitions from negative to positive, triggering an action potential to fire down the axon.
e.The cell reaches an even more negative charge than when it started, briefly making another action potential impossible.
Answers
The events in order when a neuron fires an action potential are c.Ions rush into the cell via ion channels along its dendrites., d.The voltage inside the neuron transitions from negative to positive, triggering an action potential to fire down the axon. a.The neuron begins to repolarize, e.The cell reaches an even more negative charge than when it started, briefly making another action potential impossible. and b.As the charge returns to the resting potential, the refractory period ends.
What is a membrane action potential?A membrane action potential is an expression used to denote the change in the electrical charge of the neuro cell that leads to the transmission of the signal
Therefore, with this data, we can see that an action potential is based on changes in the electrical signals in the nerve cells.
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Essay about Climate change affecting endangered animals.
Answers
The essay explores the impact of climate change on endangered animals. It examines how rising temperatures, habitat loss, and other climate-related factors threaten the survival of these vulnerable species.
Here are the steps for writing an essay about climate change affecting endangered animals:
1. Introduction: Begin the essay with an engaging introduction that captures the reader's attention and provides background information on climate change and its connection to endangered animals. Clearly state the purpose and scope of the essay.
2. Define climate change: Provide a clear definition of climate change and explain its causes, including human activities such as the burning of fossil fuels and deforestation.
3. Discuss endangered animals: Introduce the concept of endangered animals and explain why they are particularly vulnerable to the effects of climate change. Highlight some examples of endangered species affected by climate change.
4. Identify climate change impacts: Explore the various ways in which climate change, directly and indirectly, affects endangered animals. Discuss how rising temperatures, changing precipitation patterns, habitat loss, and disrupted ecosystems impact their survival and reproductive cycles.
5. Provide evidence: Support your arguments with scientific evidence, research studies, and case studies that demonstrate the specific impacts of climate change on endangered animals. Include relevant statistics, data, and expert opinions to strengthen your points.
6. Address potential solutions: Discuss potential strategies and solutions for mitigating the impact of climate change on endangered animals. Explore the importance of international cooperation, conservation efforts, sustainable practices, and policy changes to address this issue.
7. Conclusion: Summarize the key points discussed in the essay and emphasize the urgent need for action to combat climate change and protect endangered animal species. Conclude with a call to action, encouraging readers to become more aware, take individual and collective steps, and advocate for the preservation of these vulnerable species.
8. Proofread and revise: Carefully review your essay for clarity, coherence, grammar, and spelling errors. Make necessary revisions to enhance the overall quality and effectiveness of your writing.
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long-lived and short-lived. which species will literally go extinct first? a. short-lived species b. long-lived species
Answers
Literally the longest-living species will disappear first on earth. Marine invertebrates, including as brachiopods, trilobites, bivalves, and corals, were among its main victims.
Mammals, for example, have an average "lifespan" of roughly 1 million years from origin to extinction, while certain species can last up to 10 million years. several species from all of these groups became extinct at this time. About 250 million years ago, there was the greatest extinction. More than 90% of Earth's species perished during the Permian-Triassic extinction, sometimes called the Great Dying. The Great Dying allowed for the emergence of new species, including the earliest dinosaurs, despite the near extinction of all life on Earth. Microbes, the oldest known living forms, left traces of their existence in rocks that were 3.7 billion years old. It was believed that the coelacanth, which has a primitive appearance and is pronounced SEEL-uh-kanth, perished 65 million years ago with the dinosaurs.
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How do small food molecules such as glucose get from ur gut to the cells
Answers
Answer:
The cells along the small intestine use primary active transport to ensure that glucose only flows one way: from digested food to the inside of cells. Active transport proteins use adenosine triphosphate (ATP), the cell’s energy storage molecule, to pump glucose into the cell, either with or against the concentration gradient.
Explanation:
hope this helps
The phospholipid bilayer is composed of fats with Hydrophobic core. If protein channels were absent in the cell membrane, would water soluble nutrients be able to enter or
exit the cell? Explain in terms of the composition of the plasma membrane. In your own words, explain the fluid mosaic model proposed by Singer and Nicholson.
Answers
Without the nuclear membrane the cell would collapse and die. Without the cell membrane, any chemical would be allowed to enter. Membranes are very important because they help protect the cell. Materials move across the membrane by diffusion.
Which scenario is an example of a scientific way of thinking?
Answers
Answer:
beginner at this what he proves to be true
Which species has an estimated 6,300 genes in its genome?A) yeastB) roundwormsC) human beingsD) fruit fliesE) mice
Answers
Option B) roundworms. The species with an estimated 6,300 genes in its genome is the roundworm, scientifically known as Caenorhabditis elegans.
Caenorhabditis elegans is a tiny, free-living nematode that has been extensively studied in the field of developmental biology. It was the first multicellular organism to have its complete genome sequenced. The genome of C. elegans consists of approximately 6,300 protein-coding genes.
Despite its relatively small genome size compared to other organisms, C. elegans has served as a valuable model organism for studying various biological processes. Its genetic makeup contains genes that play crucial roles in development, aging, behavior, and many other fundamental biological processes. Researchers have been able to use C. elegans to gain insights into human biology and disease due to the conservation of many genetic pathways between this nematode and humans.
The simplicity and well-characterized nature of its genome make C. elegans an ideal model organism for genetic studies. Its genome is compact and highly informative, allowing researchers to explore the functions of individual genes and their interactions more easily. Therefore, the roundworm, Caenorhabditis elegans, possesses an estimated 6,300 genes in its genome and continues to be a significant organism in scientific research.
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Science help PLZZZ!!!
Answers
Answer: b
Explanation:
Answer: B.
Explanation: Light cannot pass through an opaque object.
Why should you not try to gram stain an enterobacter aerogenes culture from an embplate? (1pt)
Answers
The Gram staining test divides species of bacteria into Gram-positive as well as Gram-negative groups. In the test, gram-positive bacteria produce a purple color, whereas, gram-negative bacteria produce a pink tint.
Gram-negative bacteria would normally stain pink throughout the process, although Enterobacter aerogenes already possess a purplish hue due to being cultivated in an EMB plate, hence they shouldn't be Gram stained.
Eosin Methylene Blue agar is present in the EMB plate. Gram-negative bacteria are the only ones that can survive on the plate, hence this test is used to separate them from a sample of other species. Methylene blue, as well as eosin Y, as well as eosin Y is pH indicator dyes. At low pH, they combine to produce a dark purple precipitate.
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Would an animal with a broad or narrow niche have a better chance of survival if it was transplanted into another habitat?
1. narrow
2. broad
Answers
Answer: I´m pretty sure it´s broad
Explanation:
Please can someone help me?
Answers
The given image is of Metaphase.
What is Metaphase?A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus.
The chromosomes of the cell condense and move toward one another, aligning in the center of the dividing cell, and the nucleus of the cell disintegrates during metaphase.
The chromosomes may now be identified when viewed under a microscope. In karyotyping, a laboratory method for detecting chromosomal abnormalities, metaphase chromosomes are utilized.
Therefore, The given image is of Metaphase.
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Use five of the words listed above to summarize what you learned about the ecosystem at Craters of the Moon
National Park. Go back and watch the videos if you have forgotten some of the key details.
Answers
Poas volcano is above the frost line, and temperatures below freezing are possible. Nearly constant winds and saturating humidity contribute to biting cold at the rim.
What are Ovian moons?Ovian moons has been the four largest satellites like the moon of the Jupiter ie the Lo, Europa, Ganymede, Callisto and were first seen by the galileo. They are the amiugly the largest moons with radii larger than the dwarf planet.
Lo has more than 400 active volcanoes and dotted more than 100 mountains and has an extremely thin atmosphere made up of sulfur dioxide.
Therefore, Poas volcano is above the frost line, and temperatures below freezing are possible. Nearly constant winds and saturating humidity contribute to biting cold at the rim.
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20 points
Cells are classified as prokaryote and eukaryote. If a cell has no nucleus
and no membrane bound organelles, as mitochondria and chloroplasts,
then it is classified as *
A.Eukaryote
B.Prokaryote
C.Endosymbiosis
D.both a and b
Answers
Answer:
B. Prokaryote
Explanation:
Because it does not have a well defined nucleus and bound organelles
Answer:
B
Explanation:
A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle.In prokaryotes, the DNA (chromosome) is in contact with the cellular cytoplasm and is not in a housed membrane-bound nucleus. ... Throughout the course of evolution, organelles such as mitochondria and chloroplasts (a form of plastid) may have arisen from engulfed prokaryotes.
shine the uv light on the gel while the native proteins are separating. what do you see? why does this differ from what you see in the denatured protein lane?
Answers
When the native proteins are separating and we shine the UV light on the gel, the bands are faint. The reason is that native proteins maintain their three-dimensional shape, which enables them to fold back on themselves and protects their hydrophobic core from interaction with the negatively charged SDS molecule.
The SDS-PAGE buffer has a denaturing agent, which causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution.The migration of proteins that are exposed to a denaturing agent, such as sodium dodecyl sulfate, is based on the length of their polypeptide chains. The bands are darker when proteins are denatured because the denaturation process eliminates their tertiary structure and results in a uniform negative charge distribution, making the SDS-protein complex size-dependent. As a result, the negatively charged SDS binds to the protein, giving it a negative charge, which causes it to migrate through the gel at a rate proportional to its length and charge-density.
Hence, we can conclude that native proteins maintain their three-dimensional shape, and the SDS-PAGE buffer has a denaturing agent that causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution, which is the main reason for the difference in what we see in the denatured protein lane compared to the native protein lane when we shine the UV light on the gel.
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Which of the following accurately describes a difference between prokaryotic and eukaryotic cells?
Selected Answer:
a. Eukaryotic cells have mitochondria, while prokaryotic cells have chloroplasts.
b. Eukaryotic cells have mitochondria, while prokaryotic cells have chloroplasts.
c. Eukaryotic cells have few organelles, while prokaryotic cells have many.
d. Eukaryotic cells are much smaller than prokaryotic cells.
e. Eukaryotic DNA is housed in a nucleus, but prokaryotic DNA is not.
Answers
Option E: Eukaryotic DNA is packed inside a nucleus, but prokaryotic DNA is not, is the accurate difference between prokaryotic and eukaryotic cells.
Eukaryotes refers to the complex multicellular organisms having various organelles for specific functions and roles. They have a well-defined nucleus inside their cell which is usually surrounded by the cytoplasm. The genome or DNA in organisms is found inside the nucleus on the structures called chromosomes.
Prokayotes are the microorganisms which lack a well-defined nucleus. They have a few vacuoles inside their cytoplasm, while ribosomes remain scattered inside the cytoplasm. They can only be seen under microscopes and are generally unicellular.
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Which of the following statements is correct? (choose one)
A.) All cells have the same genes, but different genes are active in different cells. All cells have the same genes, but different genes are active in different cells.
B.) All cells have the same genes, and all of a cell's genes are active at the same time.
Answers
Answer: I'm pretty sure B is correct.
Explanation:
yeah
Why is it important for the spindle to carefully organize chromosomes during mitosis.
Answers
Because the chromosomes begin to compress, it's crucial for the spindle to correctly arrange them throughout mitosis. A microtubule is a spindle, and sturdy fiber's make up the "skeleton" of the cell.
Contrary to appearance, chromosomes are very compressed physically, allowing for the containment of these enormous DNA structures within the cell nucleus. A human's chromosomes.
When chromosomes are split during cell division in eukaryotic cells, the process is referred to as mitosis. Cell division occurs when the parent cell divides into two daughter cells that are identical to the parent cell. The cell's nucleus and chromosomes are divided to create two new daughter cell nuclei during the mitosis.
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PLEASE HELPPPPP Im almost out of time
Answers
Answer:
B. The moon revolves around the sun.
Character displacement differs from resource partitioning because character displacement ________.
Answers
Because character displacement is directly linked to the evolution of genotypes that have allowed alternate resource use.
What is resource partitioning ?Asset Apportioning alludes to the division of assets to keep away from interspecific rivalry for restricted assets in a biological system. A transformative variation assists different species with coinciding in an environmental local area.
Asset parceling concentrates on help in deciding the impact of the expansion or expulsion of an animal categories in a specific natural surroundings and the working of a biological system.
In a biological system, life forms require assets, for example, supplements and territories to develop, repeat and live. There are restricted assets present in a territory for which all organic entities contend.
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eukaryotes that reproduce through reproduction require two cells to contribute genetic material for the production of the next generation.
Answers
For eukaryotes to produce the next generation through sexual reproduction, two cells must contribute genetic material.
Sexual reproduction, the process through which two individuals of different sexes combine their genetic information to create new species. In the majority of organisms, reproductive cells called gametes, which mate to create a diploid zygote, have chromosomes in their nuclei that carry the genetic material. The zygote grows into a new person. The most common method of reproduction among living things is sexual reproduction. A remarkable variety of offspring, each with a genetic make-up different from that of its parents, may result from sexual reproduction because it allows the rearranging of genetic material both within and between members of one generation. Sexual reproduction is involved.
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Write a testable question that could be used to further investigate the topic of stimulus-response time.
Topic: Response to Stimuli
Answers
A testable question that could be used to further investigate the topic of stimulus-response time is:
Does response time to stimulus depend on the intensity of the stimulus?
What is a stimulus?A stimulus is any factor or agent that produces a response in the body. The response produced in the body may depend on the nature of the organ stimulated as well as on the intensity of the stimulus.
Response to stimulus helps an organism to be able to adapt to changes in its environment in order to enable the organism to continue to survive.
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1. Did the overall population of thr villages increase decrease or remain constant?
2. Did evolution (change in genotype frequency) occur in this population?
3.which genotypes(s) was selected for by natural selection?
4. Which genotypes(s) was selected against by natural selection?
5. Which genotype remained the lowest portion of the population? Why did this percentage remain so low?
Answers
Answer: remain constant
2 no
3. 1 2 and 4
4. 4 just 4
5. it remained low because EOF natural selection
1. Describe the important aspects of identifying species in the field. (pgs. 2-6)
Answers
According to Mayr, knowing whether there exists mutual reproduction within a population of organisms and if there are obstacles to reproduction with other organisms is the key to recognising species.
What is the definition of a species?In science, a biological species is a collection of creatures that can reproduce and have viable progeny. A species is a group of organisms composed of members of the same species susceptible of genetic recombination or gene exchange.
Species are both the most fundamental unit of categorization in biology and a systematic rank. A species is typically defined in nature as a collection of individuals who interbreed. In this view, a species is the greatest gene pool conceivable under environmental circumstances. A collection of closely related creatures that are remarkably similar to each other.
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The complete question is: Describe the important aspects of identifying species in the field of biology.
Hydrogen bonding is a type of force that occurs inside of molecules.
A. False
B. True
Answers
Answer:
\(\Huge \boxed{\textbf{B. True}}}\)
Explanation:
Hydrogen bonding plays an important role inside many molecules. It occurs due to an electrostatic attraction between a hydrogen atom bonded to an electronegative element like oxygen or nitrogen, and another nearby electronegative atom that possesses a lone pair of electrons. This second atom acts as an acceptor for the hydrogen.
The hydrogen is pulled slightly toward the acceptor due to their opposing charges. These hydrogen bonds can form both between different molecules as well as within different parts of the same molecule.
They are stronger than the normal attractions between permanently polarised molecules or non-polar atoms. However, hydrogen bonds are not as intensely strong as true covalent bonds, which involve sharing electrons, or ionic bonds that transfer electrons.
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When will you get muscle cramps and why?
Answers
Answer:
Overuse of a muscle, dehydration, muscle strain or simply holding a position for a prolonged period can cause a muscle cramp. In many cases, however, the cause isn't known. Although most muscle cramps are harmless, some may be related to an underlying medical condition, such as: Inadequate blood supply.
Fill the Blank : The ____ of a substance is a measure of how rapidly its individual molecules are moving.
Answers
The temperature of a substance is a measure of how rapidly its individual molecules are moving.
The temperature of a substance is a measure of how rapidly its individual molecules are moving.
Temperature is said to be directly proportional to kinetic energy which means as temperature increases, the kinetic energy also increases. Therefore, molecules now are moving faster.
An increase in temperature results in an increase in kinetic energy of the molecules. This leads to the molecules locomotion to be much greater than the force holding the molecules together, thus giving the molecules more freedom to move around more easily with little hindrance.
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since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?
Answers
Answer:
the exact same organelles from the parent
Explanation:
What are the reactants of cellular respiration? A. water (H2O) and glucose (CH,20) B. oxygen (0) and water (H2O) C. carbon dioxide (CO) and water (H2O) D. glucose (CH2O) and oxygen (0)
Answers
Answer: D. glucose(sugar) and Oxygen(o2)
Explanation:
I think i read that wrong if its not that then its A maybe
define the following words a: biology
b:biotechnology
Answers
Answer:Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields
biology the laws and phenomena relating to an organism or group
Biology: The study of living organisms is called biology
Biotechnology: Application of technologies in the field of biology.
What is the difference between biology and biotechnology?Biotechnology is a subfield of biology, which is a science. Biotechnology is the use of biology for human benefit, whereas biology is the study of living things. Biotechnology uses a variety of methods, such as the genetic engineering of bacteria, to produce industrial goods.
The anatomy of living things is what distinguishes biology from biotechnology. The anatomy and physiology of living things are the main topics of biology. Contrarily, biotechnology is concerned with technology. It has nothing to do with the least important aspects of a living thing's anatomy and physiology.
Hence, this is a detailed explanation of biology and biotechnology.
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When we exhale does the diaphragm relax and goes down
Answers
Answer:
True.
Explanation:
The diaphragm is like a pump; to bring in air, it opens up, pulling air in. To release it, it closes back down, forcing air out.
Answer:
Yes
Explanation:
When we exhale, the diaphragm relaxes and proceeds to return to a normal resting shape. The air is forced out of the lungs causing the diaphragm to go down.