Answer:
To maintain body homeostasis
Explanation:
The endocrine system consists of the endocrine glands that release hormones directly int the blood. Those hormones bind to their receptors on the target cells and thus regulate their function. The major glands are:
pineal gland-releases melatonin, controls sleep cycle
pituitary gland-control growth, blood pressure, thyroid glands and metabolism etc.
pancreas-secretes insulin and glucagon, control of blood sugar levels
ovaries, testes-reproductive role (release female and male hormones)
thyroid gland-controls metabolism and protein synthesis
parathyroid gland-controls Ca levels
hypothalamus-connects nervous and endocrine systems, controls other glands
adrenal glands-release adrenalin and steroid hormones.
The endocrine system functions mainly to control body processes through the production, secretion, and regulation of hormones. These hormones maintain the body's homeostasis and play crucial roles in growth, metabolism, sexual development, digestion, and other bodily processes. The endocrine system works in harmony with the nervous system to adapt to different environmental conditions.
Explanation:The primary function of the endocrine system is to control body processes by production, secretion, and regulation of hormones. These hormones, secreted primarily by endocrine system cells, tissues, and glands such as the pituitary, thyroid, parathyroid, adrenal, pineal glands, and pancreas, serve as chemical 'messengers' that function in cellular activity and maintain the body's homeostasis. They play significant roles in growth, metabolism, sexual development, digestion, regulation of blood glucose levels, and other normal bodily processes.
The endocrine system adapts to specific environments and conditions. For example, in organisms that undergo metamorphosis, the transformation process, like from a tadpole to a frog, is controlled by the endocrine system.
It is noteworthy that the endocrine system and the nervous system work together to maintain homeostasis and adjust physiological activity when external or internal environmental conditions change. Even different body tissues, such as bone, adipose tissue, heart, kidneys, stomach, small intestine, liver, skin, ovaries, and testes have secondary endocrine functions.
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Why do most organisms live in the neritic zone
The neritic zone is the zone in the water bodies that is by far the richest in marine life. This zone is occupying the shallowest part of the oceans, representing the waters above the continental shelf up until the drop off of the continental shelf, having maximal depth of roughly 200 meters. This makes this zone very good for the marine life because of two major reasons, one being the sunlight, and the other being warmth of the water. Because the neritic zone is shallow, the sunlight manages to penetrate through it, thus it enables the producers to be able to perform photosynthesis. Since the producers are the basis of all ecosystems as they are the ones that produce the most energy and are primary food source, that means that all the other organisms can prosper as well. Also, the fact that this zone is shallow means that the water is warmer, as the sunlight manages to affect most of it, thus making it warmer and much better for life than the other deeper zones that are much colder.
A normal bacterial cell carries on the chemical reaction A----------->B. A certain mutant bacterial cell cannot produce substance B. The mutation was most likely the result of a change in the..
1. Ribosome on which enzyme X is made
2. Ability of the DNA to replicate
3. Amino acid sequence of RNA
4. Gene that codes for enzyme X
Answer:
The correct answer is option 4. Gene that codes for enzyme X
Explanation:
Hello!
Let's solve this!
Mutations are a change in the DNA sequence.
We will analyze each of the options:
1. Ribosome on which enzyme X is made: the ribosome cannot suffer mutations.
2. Ability of the DNA to replicate: DNA can suffer mutations, but will not affect the production of substances.
3. Amino acid sequence of RNA: RNA does not suffer mutations
4. Gene that codes for enzyme X: This option is correct because when the gene undergoes a mutation, the enzyme that is encoded by that gene will be affected.
After the analysis we conclude that the correct answer is option 4. Gene that codes for enzyme X
After reading the paragraph below, answer the question that follows. You're conducting an experiment to determine the effect of different wavelengths of light on the absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. If the rate of photosynthesis increases, the amount of carbon dioxide in the environment will decrease, and vice versa. Small aquatic plants are placed into three containers of water mixed with carbon dioxide. Container A is placed under normal sunlight, B under green light, and C under red light. The containers are observed for a 24-hour period. Based on your knowledge of the process of photosynthesis, the plant in the container placed under red light would probably
The plant under red light would likely exhibit a higher rate of photosynthesis because red light is more efficiently absorbed by the plant's pigments than green light. As a result, more carbon dioxide would be absorbed in the container under red light, decreasing its concentration more than in the container under green light.
You're conducting an experiment to determine the effect of different wavelengths of light on the absorption of carbon dioxide as an indicator of the rate of photosynthesis in aquatic ecosystems. Photosynthesis is crucial for aquatic plants, but the availability and intensity of light can be limited by various factors in underwater environments. To assess the impact of light of different wavelengths on photosynthesis, small aquatic plants are placed in containers under different lighting conditions.
The plant in the container placed under red light would probably show a higher rate of photosynthesis compared to the one under green light. This is because photosynthetic organisms have a mixture of pigments that absorb different wavelengths of light. Red light is typically absorbed more effectively than green light, which is often reflected rather than absorbed by plants. Green light is the least effective for photosynthesis as green is the color of chlorophyll and similar pigments, which means green light is mostly reflected, not absorbed.
Therefore, the red light, being more efficiently used by plants for photosynthesis, will lead to increased absorption of carbon dioxide and a decrease in its concentration in the container with red light. On the other hand, the container under green light should have a slower rate of photosynthesis and thus a lesser change in carbon dioxide concentration.
If you dissected a tadpole, what difference would you find from what you saw in the adult frog?
Answer:
it doesnt have any legs
Explanation:
Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) View Available Hint(s) Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) Decomposition in soil releases nitrogen that plants can use. Grass grows on a sand dune, is replaced by shrubs, and then by trees. Overgrazing causes a nutrient loss from soil. Introduced pheasants increase, and native quail populations disappear. A mouse eats seeds, and an owl eats the mouse.
Answer:
The correct option is this: GRASS GROW ON A SAND DUNE, IS REPLACED BY SHRUBS AND THEN BY TREES.
Explanation:
Ecological succession refers to the gradual process by which the living organisms in a particular environment are replace overtime. Succession usually occurs as a result of disturbance to the original environment. Ecological succession can be termed as primary or secondary succession based on the type of environment in which the succession occur. One unique features of ecological succession is that lower living organisms are usually replaced with advanced living organisms as time goes on. For instance, in option D, the grasses were replaced by shrubs, which are also later replaced by trees.
The scenario of grass being replaced by shrubs, and then trees on a sand dune exemplifies ecological succession, specifically secondary succession.
Explanation:The example that best illustrates ecological succession is: 'Grass grows on a sand dune, is replaced by shrubs, and then by trees.' This process is an instance of secondary succession, where an area that previously supported life and has nutrient-rich soil undergoes a series of changes in its community structure over time. Initially, pioneer species like grasses colonize the area, which is then followed by a succession of plant communities including shrubs and finally trees, leading to a more complex ecosystem.
There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?A. lysosomeB. mitochondrionC. nucleusD. ribosome
Answer:
D. Ribosome
Explanation:
Prokaryotic and eukaryotic cells have three things in common.
1. Cells
2. Cell Membrane
3. Ribosomes
The similarity between prokaryotic and eukaryotic cells from the options is ;
( D ) Ribosome
The major similarities between prokaryotic cells and eukaryotic cells is that they can be either unicellular or multicellular, also they both have plasma membranes and ribosomes.
The ribosomes plays a major role in the protein synthesis that occurs in the cells. while some of the difference between the cells are :eukaryotic cells have membrane bound nucleus while prokaryotic cells have lysosome.
Hence we can conclude that The similarity between prokaryotic and eukaryotic cells from the options is Ribosome
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What are two general uses of protein in an organism
Energy & Repair/Maintenance
An investigation was done to see the effect of day length on the number of eggs chickens laid.
The dependent variable in this experiment is:
A) number of eggs laid
B) day length
I think it’s A) number of eggs laid
The correct answer is A) Number of eggs laid
Explanation:
In an investigation, the factor that is being studied and can be affected by other variables is known as the dependent variable. Additionally, this is the opposite of the independent variable that is manipulated on purpose by the researchers. This implies, in the case presented, the day length is the independent variable because this is going to be manipulated by the researchers, and therefore, the dependent variable is "number of eggs laid" as this factor is the one being studied and the one that is expected to be affected by the independent variable.
. If a star's surface temperature is 2900 Kelvin , half of our Sun's current temperature, then the output energy of the star is: a. Half the output energy of the Sun b. Fourth the output energy of the Sun c. Sixteen times less than that of the Sun d. None of the above
I don’t know what the answer is I wish I could help
How many different phenotypes can be produced by a pair of codominant alleles?
Answer:
Three
Explanation:
Codominant alleles are those alleles that when ars togehter in the genotype (heterozygous) are expressed simultaneously. An example of codominant alleles are those for the AB blood types: when allele for A and allele for B are together in heterozygous, both are expressed in phenotype. Another two possible phenotypes produced by this pair of codominant alleles are A blood type (when two A alleles are in homozygous genotype) and B blood type (when two B alleles are in homozygous genotype).
Multiple alleles allow for a variety of phenotypes, including those from codominant alleles. An example is the ABO blood group system in humans.
Multiple alleles refer to the existence of more than two alleles for a given gene within a population, resulting in various combinations of alleles and different phenotypes. In the case of codominant alleles, both alleles in the pair are expressed fully, leading to unique phenotypes. An example is the ABO blood group system in humans where IA and IB alleles are codominant, resulting in the AB blood type.
If a stop codon is like a red traffic light, which is most like a green traffic light during transcription?
DNA
promoter
mRNA
nucleotide
The promoter :)
Hope this helps
Answer:
promoter
Explanation:
The promoter is the sequence on DNA that serves as a binding site for RNA polymerase. The RNA polymerase is the enzyme of transcription. Binding of RNA polymerase to promoter sequence leads to the start of the process of transcription.
So, promoter sequence serves as a green light for the process of transcription.
Suppose two AaBbCc individuals are mated. Assuming that the genes are not linked, what fraction of the offspring are expected to be homozygous recessive for the three traits?A) 1/4B) 1/8C) 1/16D) 1/64
Answer:
D. 1/64
Explanation:
When we say homozygous recessive, you are looking for a pair of alleles that are both in lower case. This means that the recessive trait will be shown phenotypically. So the genotype that you are looking for in the Punnet would be:
aabbcc
Because it says reecssive for all three traits. To get the ratio, all you have to do is count how many times the combination occurs in the Punnet out of the total number of outcomes.
Attached is a Punnet for this scenario.
As you can see it only occurs once out of the 64 possible combinations.
So the answer would be 1/64.
The expected fraction of offspring that will be homozygous recessive for all three traits when two AaBbCc individuals are mated is 1/64. Each trait independently has a 1 in 4 chance of being homozygous recessive since each parent randomly distributes its alleles. The probabilities are multiplied together for each of the three traits.
Explanation:Your question asks about the expected fraction of offspring that will be homozygous recessive for all three traits when two AaBbCc individuals are mated.
Each trait has a 1 in 4 chance of being homozygous recessive (aa, bb, or cc) because each parent will distribute its alleles randomly according to Mendel's principle of random segregation. This means for each trait, there's a 25 percent chance the offspring receives only recessive alleles.
Calculating for three traits being homozygous recessive, we independently multiply the probabilities: 1/4 (for the first trait) * 1/4 (for the second trait) * 1/4 (for the third trait), which yields 1/64. So, the expected fraction of offspring that will be homozygous recessive for all three traits is 1/64, corresponding to option D).
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Which type of organism converts wastes and dead materials into nutrients that can be used by plants
Decomposers feed on dead and decaying organisms. They recycle important nutrients in these organisms back to the soil which can be absorbed back into plants through root systems. Fungi and annelids are some of many decomposers.
Which natural polymer contains 3,000 or more glucose monomers? starch protein cellulose nucleic acid?
Answer:
cellulose
Explanation:
cellulose is a polymer. it a chain of repeating monomers. the monomer for cellulose is glucose. cellulose is a polymer
which natural polymer contains 3,000 or more glucose monomers?
cellulose
Which is true of the regions near Earth’s equator? They are physically farther away from the sun than the poles. They stay cooler than the poles. They receive less sunlight than the poles. They receive more solar energy than the poles.
they receive more solar energy than the poles
Answer:
Option D, They receive more solar energy than the poles.
Explanation:
The sunlight reaching equator are more direct as compared to the light reaching the poles. Since the earth is tilted at its axis, the sun rays strike the poles at a slant and thus the angle of incidence at poles is much smaller than that of angle of incidence at the equator.
The more slant the sun rays, the less heating effect is produced and hence poles are cooler than the equator.
Therefore, Option D is correct since Equator receives more heat as compared to the poles.
How deforestation contributes to global warming
sample response : When plants photosynthesize, they remove carbon dioxide from the atmosphere. When a large number of trees are removed from an area, the levels of carbon dioxide in the atmosphere remain higher than they would be if the trees were present. Since carbon dioxide is a greenhouse gas, the presence of more carbon dioxide in the atmosphere means that more heat is trapped in the atmosphere. This causes temperatures near Earth’s surface to increase.
Explanation:
Answer:
Deforestation contributes to global warming because with trees being cut down there is less oxygen being made and no trees to take in the carbon dioxide that is being produced. So without trees to do the work, people build greenhouses which uses their own gas that makes the world warmer because it traps the heat from the atmosphere.
Explanation:
The table below shows the number of chromosome pairs for various organisms.
there is no table in the question
A significant drop in performance in cognitive areas such as memory and reading may __________.
Answer:
A significant drop in performance in cognitive areas such as memory and reading may foreshadow death within the next few years.
Answer:
A significant drop in performance in cognitive areas such as memory and reading may foreshadow death within the next few years.
Explanation:
This situation may be called terminal decline and refers to the moment when the human body begins the process of senescence, that is, from the beginning of the events that will result in the death of the individual that will happen in a few months or in a few years. It usually happens to the elderly and can be conceptualized as symptoms related to memory or other cognitive functions, such as reading, perception, among others.
Water's unique properties are due to the fact that it is a __________ covalent molecule.
Answer:
Polar Covalent
Explanation:
I think it is this... considering that it is a Polar Covalent molecule. A better answer that the question should have eluded to is the fact that, water gets many of properties due to the fact that it can Hydrogen Bond or its Hydrogen Bonds.
In angiosperms, pollination is the transfer of pollen grain to the _____ of a flower on the same plant or another plant of the same species.anther;style;stigma;ovary;ovulate cone;
Answer:
Stigma
Explanation:
Angiosperms is pollination by wind,insects and water.
the rely on either the three to transfer their pollen grains from one plant to another and stick in their sticky stigma.
In angiosperms, pollination is the transfer of pollen from the anther to the stigma of a flower of the same or another plant of the same species, which then paves the way for fertilization.
Explanation:In angiosperms, or flowering plants, pollination refers to the transfer of pollen from the anther (the part of the flower that produces pollen) to the stigma of the same or another flower of the same species. The stigma is the part of a flower where the pollen germinates. It's part of the pistil, which also comprises of the style and the ovary. The process facilitates fertilization as it lays the pathway for the sperm to reach the ovule, ensuing the production of seeds. Pollination can occur via various vectors, including wind, water, and animals.
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which is an example of visual data with regard to computer crime?
Great question!
I would say images. images do not require (in most cases) a lot of work to find, even if deleted or in code
Answer:
Images are visual data in relation to computer crimes.
Explanation:
Images are visual data related to computer crimes, such as videos, photographs, drawings, among other visual files used by the investigator in the search for computer crimes.
Computer crimes are those committed on the Internet, whether through a public, private or domestic network. They can reach a single person or several people at the same time, and have different purposes.
It should also be noted that the same crime can be committed in several places at the same time, using one or several different computers.
Refer to this portion of a dichotomous key to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has a small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 107. (a) Tail is asymmetrical ® Sturgeon (b) Tail is symmetrical ® 8What would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?
Answer:
Sturgeon
Explanation:
The key has a series of dichotomies which are decisions that need to be made at different points and thus decide whether to go on one direction or the other until you reach one end of the key or the other. In this case, one end leads to Sturgeon and the other to Catfish. Both fish are similar in that they have a shark-like body. However, the sturgeon is the one that has a combination of the characters: A single dorsal fin, no fin on its back near the tail, and an asymmetrical tail (one lobe is longer than the other).
Answer:
Sturgeon
Explanation:
Mast cells play what key role in initiating an immune response? A. Releasing histamines B. Creating antigens C. Clotting wounds D. Creating antibodies
Answer: Option a
Explanation:
Mast cells play a vital in the inflammatory and immediate allergic reactions. These cells release inflammatory mediators such as histamines, cytokines and chemotactic factors.
These chemicals acts on the smooth muscles, mucous glands and the inflammatory cells.
Histamines are not only released when the body detects any antigen it is also released during the time of injury.
Answer:
Option A
Explanation:
I agree with the answer above
Mast cells play a vital in the inflammatory and immediate allergic reactions. These cells release inflammatory mediators such as histamines, cytokines and chemotactic factors.
These chemicals acts on the smooth muscles, mucous glands and the inflammatory cells.
Histamines are not only released when the body detects any antigen it is also released during the time of injury.
When confronted by an invader, an _________ is produced to protect the body from future invasions?
an Antibody!
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
Antibody
Explanation:
The pathogen or an invader when enters the body it gets encountered by the immune cells in the body. The lymphocytes when interacts with the antigen/pathogen or invader, it produces a immune response.
The immune response results in production of memory cells and antibody producing cells. The antibody producing cells forms antibody which kills the invader and the memory cells generates memory to prevent the body when second time encounter occurs with the same invader.
When does a mutation in a parent affect the offspring
Answer:
When occurs in gametes
Explanation:
Mutations are changes in DNA sequence that can create genetic variation within the population and thus are the ultimate source of new alleles . Mutations can occur as a result of mistake during the DNA replication, under the influence of environmental factors (UV radiation, chemical agents). They can be harmful, beneficial, neutral. Based on the location of cell mutation, they can be divided into:
somatic mutation-within the somatic cells, these mutations affect only the parents (not inherited)germline mutation-within gametes, can be inherited on offspring.You are asked to draw blood from the median cubital vein. you will search for this vein in the ________.
Answer:
-Anterior side of the elbow
Explanation:
-The median cubital vein is a superficial vein of the upper limb. It connects the basilic and cephalic vein and is often used for taking blood, as it lies relatively close to the surface of the arm and becomes prominent when pressure is applied.
-It lies within the elbow pit, which is the area on the anterior of the elbow which is triangular in shape. Additionally, it is superficial to the lacertus fibrosus, also referred to as the bicipital aponeurosis, which is also located in the cubital fossa.
What type of blood vessel covers the alveoli
The answer is: Capillaries
15 POINTS i will mark brainliest
Name two primary decomposers and describe their function in the recycling of life materials. (please write your own answers)
Bacteria and Fungi are the 2 primary decomposers.
Fungi are considered as the main decomposers of litter or wastes in various ecosystems. The growth of fungi is characterized with the presence of hyphae. Bacteria also decompose materials. They are the unicellular organisms which can break down only the surfaces of organic matters.
Answer:
Two primary decomposers are Bacteria and Fungi.
Explanation:
Put simply, there main role is to turn decaying cells into nutrient components for plants and the soil. Without Bacteria and Fungi dead organisms would decompose at a much slower rate.
How do frogs get their energy when they hibernate
Answer:
From their energy storage-body fat
Explanation:
Frogs (especially terrestrial frogs) survive during the winter by going into the state of hibernation (dormant state). Since the frogs are cold-blooded animals (depend on environmental conditions), they need to find a hidden place (hibernacula) where they can survive unfavorable cold conditions. During these hibernation state, frogs slow down their activities: there is no moving, breathing, not even the heart beating. Frogs use their body fat storage as an energy source. Glucose from the liver is released in the blood and it acts as an antifreeze.
Based on the body structures of these animals, which two conclusions are scientifically sound?
Answer:
help
Explanation: