NEED HELP ASAP

Which of the following increase the speed of action potentials in the nervous system?

Answers

Answer 1

Answer:

Where are the answers to choose from?

In any case, the ranvier nodes and myelin increase the speed


Related Questions

What is a swell wave?

Answers

Answer:

Swell are waves (usually with smooth tops) that have moved beyond the area where they were generated. The distance between the crests, or tops, of the waves that make up swell is usually much greater than the distance between waves being actively generated by wind blowing over the water.

Explanation:

A plant species has two alleles for petal color: pink and white. The pink (A) allele is
dominant. If a true breeding pink flower is crossed with a carrier pink flower, what is the
probability in a percentage) that their offspring will be born as carriers for the white
flower trait? Use a Punnett Square to justify your answer

Answers

Answer:

There's no such thing as a carrier pink flower, as pink is a dominant trait. Only carrier white flowers are possible because white is recessive.

If you meant carrier white flower, the percentage of offspring born as carriers for the white flower trait is 50%

Explanation:

Punnett squares are in the image

QUESTION 4
2 poin
4. What are the three areas in which a communication disorder may occur?

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Answer:

Speech, fluency, articulation.

The theory of Proposed that sudden and widespread disasters that result in mass extinctions followed by repopulation could explain why species change over time

Answers

Answer:

Theory of Catastrophism

Catastrophism basically means Disaster.

According to Theory of Catastrophism, quick and widespread disasters lead to mass extinction (extinction of large number of species over time) followed by re-population after a notable period of time.

1. According to the CDC, is the flu vaccine safe and effective?

Answers

Answer: Yes it is safe and effective. As long as it is FDA approved.

Explanation: CDC says  "flu vaccine licensed by the Food and Drug Administration (FDA) that is appropriate for the recipient’s age and health status"


A mountain showed the following change in profile over millions of years.
Time
What happened to most of the material removed from the mountain?
Select one:
o
-A:The material disintegrated from exposure to sunlight.
-B:The material weathered to form new sediments.
-C:The material was destroyed by chemical reactions.
-D:The material was absorbed by plant roots.

Answers

Answer:

b

Explanation:

Without doing a Punnett square, predict what percentages of
offspring the cross among a heterozygous slipper footed
pigeon and a non-slipper footed would create:

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Answer:

50% slipper footed, 50% non-slipper footed

Explain how and why natural selection has allowed species such as sharks and alligators to remain genetically stable for thousands of years.

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Answer:

Stabilizing natural selection keeps gene frequencies constant in a population. The normal, most common traits are selected for and preserved so only a limited amount of evolution occurs and species can remain unchanged even over long periods of time.

Explanation:

A biological process called reproduction occurs when an organism creates young (offspring) of the same species.

What influence natural selection for survival of species?

Gene frequencies in a population are maintained constant through stabilizing natural selection.

Because only a small amount of evolution takes place and the most typical, most prevalent features are preserved, species can persist unmodified even across very lengthy epochs.

It is among the most crucial traits shared by all living things. While not necessary for an individual's existence, reproduction is necessary for the survival of a whole species.

Therefore, natural selection has allowed species such as sharks and alligators to remain genetically stable for thousands of years.

Learn more about natural selection here:

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What are the different types of competition?

Answers

Answer:

sore loser try hard goofy

Explanation: sorry i couldn't understand what you meant

Answer:

monopolistic competition

perfect competition

oligopoly competition

monopoly competition

Which of the following is a characteristic of many eukaryotes?

a. Many eukaryotes have no DNA
b. Many eukaryotes have many cells
c. Many eukaryotes have no cell membrane
d. Many eukaryotes have DNA in cytoplasm

Answers

Answer:

c

Explanation:

The statement that represents a characteristic of many eukaryotes is that many eukaryotes have many cells. Thus, the correct option for this question is B.

What do you mean by Eukaryotes?

Eukaryotes may be defined as the type of living organisms that significantly have a well-defined nucleus along with other membrane-bound cell organelles. These organisms have a complex level of compartmentalization.

According to the context of this question, almost all eukaryotes have DNA in their nucleus. This is because it is considered its genetic material. So, options A and D are eliminated.

The cell membrane is the characteristic feature of every eukaryote because this membrane separates the inner environment of the cell from external conditions. So, option C is eliminated as well.

Therefore, the statement that represents a characteristic of many eukaryotes is that many eukaryotes have many cells. Thus, the correct option for this question is B.

To learn more about Eukaryotes, refer to the link:

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Define the following terms:

1. Shadow

2. Pinhole camera

3. Screen

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Answer:

shadow

Explanation:

a dark area or shape produced by a body coming between rays of light and a surface

answer this question.......asap​

Answers

C is the answer ( i apoligize if its wrong )

Dominique is a chemist and has just discovered a new drug that interferes with the Calvin Cycle of photosynthesis. They believe this drug is going to be awesome because it will allow the light reactions to run forever, while just stalling out the Calvin cycle. Terry disagrees, saying that any drug that stalls Calvin will ultimately inhibit the light reactions, too. Who is correct and why

Answers

Answer:

Terry is right.

Explanation:

Any drug that stalls Calvin will ultimately inhibit the light reactions because the Calvin cycle and light reactions are interconnected. The light reactions provide CO2 to the Calvin cycle while on the other hand, the Calvin cycle provides sugars to light reaction in order to produce ATP molecules from it so if Calvin cycle stops no sugar is provided to the light reaction for generating ATP molecules.

which processes lead to the formation of igneous rock?

A. Heat and pressure

B. Melting and cooling

C. Erosion and weathering

D. Compacting and cementing

Answers

B melting and cooling

What is structure 1?

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Answer:

Bro give a chart or something not just a question with no info.

Explanation:

What patterns do you observe on the second colorful map

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Answer:the color explanes it's self old and young

Explanation:

When a chunk of ice is left behind by a receding glacier melts, the water stays in the kettle forming a what?

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Answer:

Forming a lake

Explanation:

When an ice block melts, a depression conforms, known as a kettle, and if this fills with water, then it is called a kettle lake.

A drought decreases the water level in Lake Winnipeg. The carrying capacity of the lake decreases.
Limiting factor?

Explain

Answers

Answer:

Water, fish

Explanation:

The limiting factors are the water of course and the organisms living in the lake.

A drought decreases the water level in Lake Winnipeg and the carrying capacity of the lake decreases. This is because it is:

Density Independent

When something is said to be density Independent with respect to ecology, it means that an external force is able to influence the volume of a habitat, notwithstanding the density.

As a result of this, this particular principle is in place here as a drought which is an external factor is able to affect the size of the water.

Read more here:

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Some bird species, like the oxpecker seen here, have a special relationship with certain large mammals, including
rhinos, giraffes, and zebras. Oxpeckers land on the zebras and eat ticks and other parasites that live on their skin. The
oxpeckers get food while the zebras get pest control. Additionally, oxpeckers fly up and scream a warning to zebras
when danger is present. This behavior is an example of what type of relationship?
A)
co-evolutionary
Eliminate
B)
mutualistic
parasitic
D)
predator-prey

Answers

Answer:

This is a mutualistic relationship

B (mutualistic parasitic)

Yeah Why is global warming a
significant environmental
stressor

Answers

Answer:

it can destroy animal habitat like the penguin of polar bear. plus it causes droughts and severe storms to happen. also I've heard that in the warmest places you can catch diseases more easily.

A company discovers a coal reserve under a mountain. The company uses bulldozers to remove soil and flatten the top of the mountain to expose the bedrock.
Then, the company uses machines to remove coal from the exposed bedrock. How will obtaining the coal affect the environment?
The removal of soil will increase the rate of erosion, and the removal of coal from the mountain will decrease the volume of carbon dioxide in the
atmosphere.
The removal of soil will decrease the rate of erosion, and the removal of coal from the mountain will decrease the volume of carbon dioxide in the
atmosphere.
The removal of soil will increase the rate of erosion, and the flattening of the mountain will change the direction in which water flows off of the
mountain
The removal of soil will decrease the rate of erosion, and the flattening of the mountain will change the direction in which water flows off of the
mountain.

Answers

Answer:

The removal of soil will increase the rate of erosion and the flattening of the mountain will change the direction in which water flows off of the mountain.

if you break down the word interactions, it means ”the actions between.“ How would you define interactions between two species?

Answers

Answer:

Symbiosis is an interaction characterized by two or more species living purposefully in direct contact with each other. The term "symbiosis" includes a broad range of species interactions but typically refers to three major types: mutualism, commensalism and parasitism.

Explanation:

A, b,c,d some pick and help me

Answers

Answer:

D

Explanation:

D is the most accurate anwser

Wolves, which are top predators, were eliminated from Yellowstone National Park in the 1930s. In 1995, wolves were reintroduced into Yellowstone. During the period in which wolves were absent from Yellowstone, which most likely occurred?
Select one:

a greater balance of predator-prey relationships

an increase in the population of tertiary consumers

an increase in competition for food resources among small prey

a greater opportunity for primary producers to flourish

Answers

The answer is C because it’s just C

How many different amino acids are used in human proteins?

Answers

Answer:

20 amino acids

Explanation:

500 amino acids have been identified in nature, but just 20 amino acids make up the proteins found in the human body.

20 amino acids make up the proteins found in the human body.

In real life, sequencing data is never as clean and clear as the sequencing data presented here. Typically, sequencing machines do not read eDNA sequences perfectly, occasionally mistaking a C for a T, for instance (though this is often <1% of the time). Additionally, there will even be some variability of the barcode among individuals of the same species! How can sequences without 100% identity to a reference still be useful for biodiversity assessment

Answers

Answer:

by using consensus sequences and complementing DNA barcoding data with other sources of information (e.g., morphological, and ecological data)  

Explanation:

DNA barcoding refers to the taxonomic method used to identify and classify species by comparing DNA sequences. Some of the most used barcoding genes include the 16 subunit (16S) of the ribosomal RNA (rRNA) gene in prokaryotes, the Cytochrome c Oxidase I (COI) gene in animals, the Internal Transcribed Spacer (ITS) sequence in fungi and the RuBisCO gene in plants. A good gene for DNA barcoding purposes must exhibit intraspecific variability, conserved regions in order to synthesize appropriate PCR primers, and the sequence need to be short in length (100 to 1000 bases). The main problem associated with this identification method is the confidence value between genetic sequences. For example, when COI sequences are identical, there is a 6 percent of chance that these sequences belong to different species. On the other hand, the percentage of intraspecific variability among DNA barcoding sequences is variable, even among closely related species. This problem, as well as bioinformatic errors related to sequence reads, can be partially overcome by aligning genetic sequences (including outgroups) in order to obtain consensus sequences. Moreover, taxonomists reasonably argue that DNA barcoding data should be complemented with morphological and ecological data in order to achieve accurate species identification.

What does GAC code for?

Answers

Answer:

DNA codons

Explanation:

Answer:

Aspartic acid

Explanation:

Complimentary base = CTG ( or CUG )

Bacteria are unicellular?

-False
-True

Answers

Answer:

True

Explanation:

Answer:

True

Explanation:

I hope this helps.

A virus infects a lung cell and begins replication. The lung cell releases interferon into the extracellular environment where it can be picked up by other nearby cells. As a result, the other nearby cells slow down their protein-making machinery to slow down viral replication should they become infected. This is an example of what kind of communication

Answers

Answer: The options are not given but it is gotten from another websites and here are the options.

A.Cell-to-cell (membrane molecule) recognition

B. Cell junctions

C. Paracrine signaling

d. Synaptic signaling

The correct option is C.

Paracrine signaling.

Explanation:

This is because in paracrine signaling cell communicate with other near by cells through chemical Messengers. It is a form of cell to cell communication in which a cell produced signal and transfer it to other neighbouring cells whereby the neighbouring cells alter or change their behavior to counter the effect of the signal. From the question, the lung cells send signals to neighbouring cells and this alter their behavior by slowering down protein making machinery.

Which of the following is a guideline to follow when using pesticides

Allow pets to stay in area

Put up warning signs

Use one and a half times the recommended dose

Spray on a windy day​

Answers

I would say put up a warning sign.

Explanation.
If you used a pesticide on a windy day it’s gonna blow the product around so it might go into the places you wanted it
Having pets around certain pesticides when they are freshly sprayed can be very harmful to an animal.
And typically the recommended dose is correct so there’s no reason to use more
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In an indirect message, valid reasons for the refusal are presented before the bad news. Which option is most effective? a.If we accepted your rather dated desktops and laptops, we would risk software incompatibility, high repair bills, and substantial replacement costs for missing input and output devices. b.We're very sorry but our policy does not allow us to accept donations of used computing equipment. c.We had to establish guidelines for the acceptance of used computing equipment because only new computers provide warranties, compatible software, and come with matching peripherals. Describe the importance of a hypothesis in scientific inquiry. write an equation of the line that passes through the given points (3,1) (0,10) How did California play a role in the Compromise of 1850? what is the exact value of cos5pie/12 a car accelerates from 25 km/hr to 55 km/hr in 30 seconds. what is its accelerates ? What are 2 examples of proteins in the body? 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Help, Help, Please[tex] \sf find \: the \: value \: of \: \theta \: when \: \theta \: is \: acute\: angle[/tex][tex] \sf \cos^{2}(\theta) - \sin^{2}(\theta) =2-5 \cos(\theta) [/tex][tex]\text{note:explanation is a must}[/tex] Both __________ and __________ affect the awareness and motivation of a firm to undertake actions and responses. a. first-mover advantages; corporate size b. market commonality; resource similarity c. management capabilities; competitive analysis d. speed of management decisions; management actions BRAINLIEST Could someone please give me a deep analyzation for my essay PLEASEThere has been a controversy between animal rights supporters and scientists about whether it is right to use animals in experimental research. Also, it is very debatable whether using animals for such research results in finding a cure for diseases. From my point of view, if there are no other alternatives, and if it is possible that this will contribute to science, animals may be used for experimental research.Although the animal rights activists claim that people and animals are equal and thus they should be treated equally, I think that people and animals cannot be seen equal, and therefore the death of an animal cannot be the same thing as the death of a person. For that reason, causing animals to die for science, for the sake of saving human lives, may be considered ethical to some extent if it will contribute to the advancement of science and will be to the benefit of humanity in general.Furthermore, animal rights supporters label scientists as cruel for causing animals to die in medical experiments, while they do not oppose the people, mostly farmers, who kill animals for food, even though they know that 99% of animals deaths is caused by farmers while only a small percentage, i.e. 1% is caused by scientists. The underlying reason for that is they find scientists easier to attack and cannot deal with farmers who are organized and strong.Another basic argument of animal rights defenders is that people and animals are different genetically and therefore it is useless to use animals in experiments to see the effects of some substances on people. They claim that it will make no good to use animals in experiments because they are too different to be compared to people. Some of them even assert that it is better to use people directly as they think that the results of experiments on animals cannot be valid and reliable as long as the same observation has not been done on man also. However, these people cannot foresee the disastrous results of such a practice. Many people are likely to die until a healthy result is obtained.People and animals may not be the same, but to some degree there are similarities which can at least give scientists an idea about their experiments. From this point of view, scientists are right to use animal models to provide themselves with information about what is happening at level of detail that could not be achieved in humans. Although there might have been some incidents when animal testing did not prove to be useful and some effects of some drugs observed on animals could not be observed on people, there are also a lot of examples that show that using animals resulted in significant developments and helped to cure some serious illnesses.On the other hand, there may be alternative methods that should be used instead of animal experimentation. Then, of course, it is cruel and unethical to use animals. For example, in some experiments in-vitro methods can be used as an alternative to using live animals. 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