Much of the coordination of vertebrate body functions via chemical signals is accomplished by the ________.
A. respiratory system
B. endocrine system
C. integumentary system
D. excretory system
Answers
Much of the coordination of vertebrate body functions via chemical signals is accomplished by the endocrine system.
The endocrine system is an information system composed of hormonal feedback loops that are secreted directly into the circulatory system by the body's endocrine glands and regulate distant target organs.
In vertebrates, the hypothalamus is the centre of neuromodulation of all endocrine systems. The main endocrine glands in humans are the thyroid and adrenal glands.
The study of the endocrine system and its disorders is called endocrinology.
The glands that send signals to each other in sequence are often referred to as the hypothalamic-pituitary-adrenal axis.
In addition to the specialized endocrine organs mentioned above, many other organs that are part of other body systems have secondary endocrine functions such as bones, kidneys, liver, heart and gonads.
For example, the kidneys secrete the endocrine hormone erythropoietin. Hormones are amino acid complexes, steroids, eicosanoids, leukotrienes, or prostaglandins.
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Related Questions
How does the structure of DNA determine how genetic information is inherited?
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prolonged immobility can result in the formation of a(n) , an unnecessary (and possibly dangerous) blood clot. the abnormal process that results in the formation of this clot is called .
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Prolonged immobility can result in the formation of a deep vein thrombosis (DVT), an unnecessary and potentially dangerous blood clot.
The abnormal process that results in the formation of this clot is called thrombosis, which involves the aggregation of platelets and the activation of the clotting cascade, leading to the formation of a clot. DVT can be particularly dangerous if a piece of the clot breaks off and travels to the lungs, causing a pulmonary embolism, which can be life-threatening. It is important to take measures to prevent DVT, such as staying active during long periods of sitting or standing, wearing compression stockings, and taking anticoagulant medications if prescribed.
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Assume population b and population c evolve until they reach adaptive peaks and experience stabilizing selection. Both populations have the same mutation rate. Which population will have less variability in size?.
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That population will have less variability in size which has slower rate of mutation or has experience less mutation.
What is mutation?A mutation refers to a change in a DNA sequence of an organism. Mutations can result from DNA copying mistakes that is made during cell division, exposure to radiation or chemicals which is called mutagens, or infection caused by viruses.
If mutation occurs slowly or not completed, it will leads to less variability in size so we can conclude that the population will have less variability in size has experience less mutation.
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what travels through the nucear pores?
Answers
Answer:
molecules
Explanation:
Nuclear pore complexes allow the transport of molecules across the nuclear envelope.
Answer:
Molecules
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How do decomposers help an ecosystem?
A. Decomposers keep dead matter from "piling up" in an ecosystem. B. Decomposers restore essential nutrients to an ecosystem. C. Decomposers use sunlight to make food for an ecosystem.
Answers
Decomposers play an important role in maintaining the health and balance of an ecosystem. They break down dead organic matter such as dead plants and animals, and convert them into nutrients that can be absorbed by other living organisms.
This helps prevent the accumulation of dead matter in the ecosystem, which could lead to a buildup of harmful bacteria and disease. Additionally, decomposers restore essential nutrients such as carbon, nitrogen, and phosphorus back into the soil, which is important for the growth of plants. Unlike producers, which use sunlight to create their own food, decomposers consume organic matter to produce energy for themselves and to recycle nutrients back into the ecosystem.
In summary, decomposers are essential in ensuring the overall health and productivity of an ecosystem by breaking down dead matter and returning valuable nutrients back to the environment.
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The layers of rock may be relatively dated, from youngest to oldest
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Answer:
see photo
Explanation:
Edge
you are walking and you step on a nail with your right foot. this will activate the crossed extensor reflex. which muscle groups) serve as agonist muscles to keep you from getting injured? select all that apply
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Left quad and right hamstring muscle groups serve as agonist muscles to keep you from getting injured.
What are agonist muscles?The term "agonist" refers to the muscle that is contracting, and "antagonist" refers to the muscle that is relaxing or lengthening. The muscle that is in "agony" while you are performing the movement is the agonist, as it is the one that is doing all the work. This is one way to remember which muscle is the agonist.
The latissimus dorsi and the shoulder's deltoids (upper back) the trapezius and the pectoralis major (upper back) anterior tibialis and gastrocnemius (both anterior and posterior calf muscles).
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A person is lying quite still, he or she still needs energy.
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A person is lying quite still his or her cells, organs are not working properly due to which the food he or she has eaten does not convert into simplest form and he/she will not get energy.
Energy is needed for the body's different biochemical activities to take place while someone is lying still. For instance, the synthesis of glycogen, lipids, and amino acids from the food we eat requires energy. Additionally, energy is needed for a number of metabolic functions like cell division and respiration, which occur constantly.
A persons heart, brain, and other involuntary activities are performed by using energy from the food we eat each day, of which his brain uses 60%. This proves that even people who lie quite a bit need energy.
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Skin is classified as either thick or thin based on two parameters: the number of epidermal ____ in the epidermis and the relative _____ of the epidermis, rather than the thickness of the entire integument
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Skin is classified as either thick or thin based on two parameters: the number of epidermal layers in the epidermis and the relative thinness or thickness of the epidermis, rather than the thickness of the entire integument.
Thin skin has a thinner epidermis with fewer layers of cells than thick skin. Thin skin is found in areas of the body that are not subjected to as much mechanical stress or abrasion, such as the face, neck, and upper limbs. Thick skin has a thicker epidermis with more layers of cells and is found in areas of the body that are subjected to mechanical stress or abrasion, such as the palms of the hands and soles of the feet.
In addition to the differences in the thickness and number of layers in the epidermis, thick and thin skin also differ in the distribution of hair follicles and sweat glands. Thick skin has no hair follicles or sebaceous glands, but it does have a large number of sweat glands, which help to regulate body temperature. Thin skin, on the other hand, has hair follicles and sebaceous glands, but a lower density of sweat glands.
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Eukaryotic cells and prokaryotic cells have some parts in common. Which of the following pairs of parts would you find in both types of cells?
cytoplasm and nucleus
cell membrane and cytoplasm
DNA and membrane-bound organelles
cell membrane and membrane-bound organelles
ANSWER = BRAINLIST
Answers
Answer:
cell membrane and cytoplasm
Explanation:
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What would be the consequence of treating the vector, before ligation, with calf intestinal phosphatase?
A. It would prevent the plasmid's DNA from reversing polarity during ligation.
B. It would prevent the ends of the plasmids from being ligated.
C. It would ligate the ends of the plasmids.
D. It would reverse the polarity of plasmids' DNA
Answers
The consequence of treating the vector, before ligation, with calf intestinal phosphatase - It would prevent the ends of the plasmids from being ligated.
The correct option is B.
Unwanted DNA fragment chimaeras can also result from the ligation of DNA fragments into a vector. Treatment with calf intestinal alkaline phosphatase (CIAP) reduces the likelihood of noncontiguous fragments being ligated.
It would stop the polarity of the plasmid's DNA from switching during ligation.
Depending on the phosphatase you select, you should treat your digested backbone plasmid with a phosphatase before to the ligation stage or prior to the gel purification phase. Commonly utilised enzymes include CIP (calf alkaline phosphatase) and SAP (shrimp alkaline phosphatase).
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you carry out the experiments, check the results with what you would have expected to happen given if each explanation were correct, to eliminate all the ones whose expected results did not come out of the experiment. the explanation that remains after this process is called
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You conduct the tests, compare the findings to what you would have anticipated would occur if each explanation were true, and then rule out any candidates whose predicted outcomes did not emerge from the experiment. The scientific explanation or hypothesis is what is left over after this procedure.
The scientific method is what is known as a methodical and empirical strategy used to research and understand natural phenomena.
The scientific method involves observation, hypothesis formation, prediction, experimentation, and conclusion drawing. The explanation that remains after all other explanations have been eliminated is referred to as the scientific theory.
A theory is a well-thought-out explanation for observations of the natural world that has been established using the scientific method and incorporates a number of facts and hypotheses.
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What do you think? Were zebra mussels intentionally transported to the U.S.? Explain your reason for your answer.
Answers
Answer: no it was brought by accident
Explanation:In the case of zebra and quagga mussels, the introduction to the U.S. was accidental. They were probably brought to the Great Lakes as stowaways in the ballast water of a cargo ship that came from Europe or Asia. Ballast water is taken aboard to maintain stability and is discharged when new cargo is added to the ship.
An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
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The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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PLZ HELP (30 POINTS)
Which of the following is a direct benefit of using agriscience to optimize land use for animal grazing?
Reducing soil degradation
Inventing new fertilizers
Updating irrigation
Increasing climate change
Answers
Answer: The answer is D Increasing climate change
Explanation: Which of the following is a direct benefit of using agriscience to optimize land use for animal grazing? hope this helps man
D
Explanation:
i think that's the answer
When proteins help larger molecules across the cell membrane its called
Answers
Answer:
Facilitated transport proteins
Explanation:
Large molecules such as glucose or carbohydrates use proteins to help break down cell membranes. Some membrane proteins with chains of carbohydrates are attached to help cells become acquainted with certain molecules.
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Which of the following is an example of an enzyme? Multiple Choice Sigma factor: the protein that binds to bacterial promoters to initiate transcription Insulin: the protein that tells cells to uptake glucose Keratin: the protein that gives cells structure Glucose transporter: the protein that allows glucose into cells ATP-synthase: the protein that produces ATP from ADP and P
Answers
Answer:
ATP-synthase: the protein that produces ATP from ADP and P
Explanation:
Proteins have diverse functions. Enzymes are very specific type of proteins with catalytic activity, help run reactions, and help with metabolism.
ATP-synthase is an enzyme in electric transport chain which allows us to make ATP using the electrochemical gradient in mitochondria.
one function of the citochondria appear in the greatest numbers in cells that are entral vacuole in plant cells is facilitating cell growth: the central vacuole absorbs water and increases in size, expanding the volume and size of the plant cell while doing so. animal cells, however, do not grow by this method. what is an essential difference between animal and plant cells that could explain how a plant cell can withstand the internal pressure caused by this expansion of the central vacuole?'
Answers
The presence of cell wall in plants which is absent in the animals cells is what allows the withstanding of the internal pressure during the expansion of the central vacuole.
The plant cell basically contains an outer cell which is made up of pectin as well as cellulose. It gives the plant cell its shape as well as rigidity. This cell wall is absent in the case of the animal cell and their cell only has a cell membrane.
The plants also have a centrally placed vacuole which is big in size. This vacuole plays an important role facilitating the growth of the cells and absorbs water inside it. Even though this happens, the cell is able to withstand the internal pressure due to the presence of the cell wall.
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PLSSSS HELP IF YOU TURLY KNOW THISS
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B. Prediction of weather. Science technology are used to predict atmospheric conditions at a certain area and time. Computer-based models that take into consideration a variety of atmospheric elements.
Quantitative data on the condition of the atmosphere, land, and ocean at a particular site are collected in order to make weather predictions, which then use meteorology to anticipate how the atmosphere will change there.
Forecasts were previously made manually using a combination of factors, including changes in barometric pressure, the current state of the weather, and the state of the sky or cloud cover.
Still requiring human input, selecting the best model to serve as the forecast's underlying framework involves understanding of model bias, model performance, and pattern identification.
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How do neonicotinoid pesticides cause paralysis and death in insects? I. Acetylcholine receptors are blocked. II. Cholinesterase fails to break down the pesticide. III. The pesticides bind to presynaptic receptors. A. I only B. I and II only C. I and III only D. I, II, and III
Answers
Neonicotinoid pesticides cause paralysis and death in insects through the following mechanisms: I) Acetylcholine receptors are blocked, II) Cholinesterase fails to break down the pesticide, and III) The pesticides bind to presynaptic receptors. The correct answer is option D, I, II, and III.
Neonicotinoid pesticides, as the name suggests, are structurally similar to nicotine and target the nervous system of insects. They interfere with the normal functioning of the insect's nervous system, leading to paralysis and eventual death.
I) Acetylcholine receptors are blocked: Neonicotinoids bind to acetylcholine receptors in the insect's nervous system, blocking the transmission of nerve impulses. Acetylcholine is an important neurotransmitter involved in muscle movement and other physiological processes. By blocking these receptors, neonicotinoids disrupt the normal communication between nerves and muscles, leading to paralysis.
II) Cholinesterase fails to break down the pesticide: Cholinesterase is an enzyme responsible for breaking down acetylcholine and terminating its signaling. Neonicotinoids can inhibit the activity of cholinesterase, preventing the breakdown of acetylcholine. This results in an accumulation of acetylcholine in the synapse, prolonging its effects and further disrupting nerve function.
III) The pesticides bind to presynaptic receptors: Neonicotinoids also bind to presynaptic receptors in the insect's nervous system, interfering with the release and regulation of neurotransmitters. This disruption affects the normal communication between neurons, leading to dysfunction and paralysis.
In summary, neonicotinoid pesticides cause paralysis and death in insects through a combination of blocking acetylcholine receptors, inhibiting cholinesterase activity, and binding to presynaptic receptors. Therefore, the correct answer is option D, I, II, and III.
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The first stage of photosynthesis in a chloroplast is:.
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what is a negatively charged ion called
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Answer: Negatively charged ions are called anions.
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if you are riding in a car, passing telephone lines, trees, and bodies of water, how does visual texture help you to perceive the world properly?
a) both eyes gauge the shifting in near objects, which seem to shift a lot when you move, and far objects, which don't seem to shift much at all.
b) objects that are near appear to be different shades of color than objects that are distant.
c) objects such as trees that are near appear rougher than objects that are distant and appear smoother.
d) objects are perceived as retaining the same size regardless of how far away or close up they are, such as buses and trucks.
Answers
If you are riding in a car, passing telephone lines, trees, and bodies of water, visual texture help you to perceive the world properly by b) objects that are near appear to be different shades of color than objects that are distant.
Riding in a car and passing telephone lines, trees, and bodies of water allows us to experience the world in a unique way. The visual texture around us helps us to properly perceive our environment by providing depth perception, color contrast, and texture cues. Through visual texture, we are better able to recognize the objects around us and gain insight into their shapes and sizes.
By seeing the different textures of the telephone lines, trees, and bodies of water as we pass them, we can comprehend how these elements interact with one another in our natural world.
Furthermore, changes in color contrast help us comprehend the significance of one element or object compared to another. This is especially important when driving as it helps us notice potential hazards such as potholes or animals crossing the road. Visual texture improves our awareness of our surroundings and allows us to properly perceive the world around us while riding in a car.
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There are a population of oysters that move into the shallow water. The light colored oysters blend in with the rocks. The dark colored oysters blend in with the shadows cast by the rocks. What types of selection will this population experience? Use the diagrams below to help make your decision. A) directional B)stabilizing C) disruptive D) all the above
Answers
Answer: I believe disruptive
Explanation: I believe
1. Evaluate your exposure to some or all of the indoor air pollutants in your home
2. What would you say is the most surprising?
3. Come up with a plan for reducing your exposure
4. Who do you feel is responsible for this pollution?
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The energy in many of those food particles is ultimately transferred into ______. A. Complex carbohydrates B. Glucose C. Proteins D. Lipids
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Which of the following statements correctly summarizes the process of photosynthesis?
A. Reactions and the Calvin Benson cycle of the grana release oxygen into the atmosphere.
B. Light dependent reactions convert CO2 to carbohydrates, which light independent reactions use to produce NADPH2 and ATP.
C. CO2 is converted to carbohydrates through reactions fueled by products from the light independent reactions.
D. Reactions in the thylakoids capture free energy from sunlight and use it to convert glucose and oxygen to water and carbon dioxide.
Answers
The correct statement would be 'CO2 is converted to carbohydrates through reactions fueled by-products from the light DEPENDENT reactions'. Photosynthesis produces simple carbohydrates.
What is photosynthesis?Photosynthesis is a series of chemical reactions by which plants can produce simple carbohydrates by using the energy from the sun and carbon dioxide.
Photosynthesis has two types of reactions: light-dependent reactions and light-independent reactions.
Light-dependent reactions produce energy (mainly in the form of ATP), whereas light-independent reactions produce carbohydrates (i.e., glucose).
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Explain how to distinguish different species by their DNA.
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DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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where do we find chloroplast and chromoplast in hebiscuis
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Answer:
Explanation:Chloroplasts are present in the cells of all green tissues of plants and algae. Chloroplasts are also found in photosynthetic tissues that do not appear green, such as the brown blades of giant kelp or the red leaves of certain plants. In plants, chloroplasts are concentrated particularly in the parenchyma cells of the leaf mesophyll (the internal cell layers of a leaf).
(a) Where is the plasma membrane located on an animal cell? _____ (b) All organelles have a specialized function. What is the function of the plasma membrane? _____
Answers
Answer:a) Where is the plasma membrane located on an animal cell?
Explanation: