Answer:
Action potential arrives at the axon terminal.
Calcium ions enter the axon terminal.
Synaptic vesicles fuse to membrane of axon terminal.
Acetylcholine is released into the synaptic cleft.
Acetylcholine binds to its receptors on the junctional folds.
Junctional folds become depolarized.
Action potential is initiated on the sarcolemma.
Explanation:
When the electrical signal (action potential) reaches the axon terminal it opens Ca channels that release Ca ions from the outside inside the axon terminal. Ca ions trigger the fusion of vesicle with membrane of the presynaptic cell (axon terminal). As a consequence, neurotransmitter-acetylcholine is released into the synaptic cleft. It diffuses to the postsynaptic cell and binds to its receptor (nicotinic acetylcholine receptor). The binding of acetylcholine leads to the depolarization of the sarcolemma.
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.
Krupa uses many methods to control pests on her farm. She plants a variety of crops, uses ladybugs to control aphids, and uses chemical pesticides when necessary. Which term describes Krupa's farming practices? 1Points A inorganic plant material B integrated pest management C international park management D invasive predator migration
Krupa's farming practices can be described as integrated pest management.
Explanation:Krupa's farming practices can be described as integrated pest management. Integrated pest management (IPM) is an approach to pest control that combines various methods to manage pests effectively and sustainably. Krupa's methods of planting a variety of crops, using ladybugs, and using chemical pesticides when necessary align with the principles of IPM.
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Krupa's farming practices can be described as Integrated Pest Management (IPM), a comprehensive and environmentally sensitive technique used for managing pests. This approach uses a combination of strategies, including biologically based controls, crop rotations, and targeted pesticide use.
Explanation:The term that describes Krupa's farming practices is Integrated Pest Management (IPM). IPM is a comprehensive, environmentally sensitive approach to pest management that relies on a combination of common-sense practices. Its programs use current, comprehensive information on the life cycles of pests and their interactions with the environment. By using this information, IPM can manage pest damage with the least possible hazard to people, property, and the environment. Krupa's methods of planting a variety of crops, using ladybugs, and applying chemical pesticides when necessary are indicative of this strategy.
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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.
What type of blood vessel covers the alveoli
The answer is: Capillaries
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.
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.The magnetic iron oxide mineral is called .
Answer:
lodestone
Explanation: I'm on the test right now.
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:
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
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.
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.
Why is it impossible to predict the phenotype of the offspring by observing only the phenotype of the two parents?
Answer: In the process of meiosis, alleles separate and are added to the gametes in an independent manner. While each gamete (egg or sperm cell) therefore contains one allele for each gene, it's impossible to know which allele, because alleles segregate in a random manner. However, it's possible to calculate probabilities that the offspring will have a given allele using Punnett squares.
Explanation: PENN FOSTER
It is impossible to predict the phenotype of the offspring by observing only the phenotype of the two parents because DNA from their grandparents can affect the offspring as well.
How explain your answer?DNA is combined from the parents to create offspring. When that offspring reproduces their children not only possess DNA from their parents but from their grandparents as well.
Mixing together two separate DNA's from two different family trees can result in rare genetic mutations which results in the offspring looking different from their parents but showing resemblance to their grandparents.
This is why you have to look at the phenotypes of more then just the two parents because there are more possibilities, including what their grandparents looked like.
Thus, DNA from their grandparents can affect the offspring as well.
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Explain why dog and cat paws are not adapted for doing the six actions you tested. 2. what are cat and dog paws adapted for? 3. describe how your hand is adapted for doing the actions you tested. 4. you have an opposable thumb. explain what this means. 5. why do you feel that human hand adaptations have helped to make humans such a successful species on earth?
Answer:
2: they are adapted for running at high speeds, catching prey, and climbing.
3: My hands are used for lifting items and/or Operating multiple tasks at the same time.
4: Yes you have an opposable thumb. I would hope so. It allows you to take hold of anything in your grasp
5: It allows us to do the impossible. We create and accomplish things just with our hands. With our hands we were able to create this world.
Cat and dog paws are not adapted for the six actions tested. They are adapted for running, climbing, jumping, and providing stability. Human hands have opposable thumbs and are adapted for fine manipulation and tool use. The opposable thumb is a key adaptation that has contributed to human success.
Explanation:Cat and dog paws are not adapted for the six actions tested because their paws are not designed for fine manipulation. While they have claws for digging and gripping, their paws lack the dexterity and opposable thumbs that humans have. Cat and dog paws are adapted for running, climbing, jumping, and providing stability on varied terrains.
Human hands are adapted for the actions tested because they have opposable thumbs and five digits with sensitive tactile pads. The opposable thumb allows for a wide range of motion and precision grip, while the fingers provide dexterity for various tasks.
An opposable thumb means that it can be brought into opposition with the other digits, allowing for a power grasp and precision grip. This thumb characteristic is unique to primates and provides them with increased manual dexterity.
Human hand adaptations have helped make humans a successful species on Earth because they allow for the manipulation of objects, tool use, and complex tasks. The opposable thumb, combined with the dexterity of fingers, enables humans to create and use tools, solve problems, communicate through gestures, and perform intricate tasks that contribute to our survival and advancement as a species.
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:
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.
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.
The primary organ responsible for absorption of the products of digestion is the:
The small intestine is the primary organ responsible for the absorption of the products of digestion. It has a highly folded surface with villi and microvilli that increase its surface area for efficient nutrient absorption. Absorbed nutrients are carried into the hepatic portal vein and distributed throughout the body.
Explanation:The primary organ responsible for absorption of the products of digestion is the small intestine. It is a long tube-like organ with a highly folded surface containing finger-like projections called villi. The villi and microvilli increase the surface area of the intestine, allowing for efficient absorption of nutrients from digested food into the bloodstream. Absorbed nutrients are then carried into the hepatic portal vein and distributed to the rest of the body.
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:
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.
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.
What are two general uses of protein in an organism
Energy & Repair/Maintenance
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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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.
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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before it is published in a scientific journal, a paper must pass through the peer reveiw process. which of the following is a benefit of this practice?
A. A scientific paper is a reiable source of information.
b. news about a scientific discovery reaches the public sooner.
c. only the most exciting experiments are published.
d. a hypothesis is accepted without any supporting evidence.
Answer: A. A scientific paper is a reliable source of information.
Explanation:
A peer review is a kind of analysis of the research outcome by the people who generally exhibit the same competency as that of the author or researcher and knowledge for a particular subject or topic in which the research has been conducted. Such a process makes the research outcome more authentic and reliable. The author learns to improvise the research process and corrects the mistakes after the peer review.
Answer:
The correct answer is : A scientific paper is a reliable source of information.
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
Without the mountain lions, increased numbers of deer may reduce the food supply available to other herbivores, such as field mice and crickets. As a result, populations of deer, mice, and crickets might decline, causing a population decrease in species that feed on these organisms as well. This example implies that properly functioning predator/prey relationships do which of the following?
Select all that apply.
A: harm all of the organisms in an ecosystem B: throw an ecosystem out of balance
C: result in food surplus for the entire ecosystem D: maintain balance within an
ecosystem
Answer:D
Explanation:
The proper functioning of predator/prey relationships does maintain balance within an ecosystem.
Why the proper functioning of predator/prey relationships is important?The predator-prey relationship consists of the interactions between two species and their consequent effects on each other. In the predator-prey relationship, one species is feeding on the other species.There needs to be a predator and prey relationship to maintain balance in an ecosystem. These chains are either top-down which is predator-related or bottom-up which are reliant on primary producers mainly. Thus, if we remove a top predator, the whole food chain will be impacted.If one species cannot adopt an appropriate defense, it may go extinct.Hence, Option D is the answer.
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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.
The table below shows the number of chromosome pairs for various organisms.
there is no table in the question