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Assoli18 [71]
2 years ago
10

What substance is used to make up nerve fibre​

Biology
1 answer:
cupoosta [38]2 years ago
7 0

Answer:Myelin is a lipid-rich (fatty) substance that surrounds nerve cell axons (the nervous system's "wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon.

Explanation:

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Which planet is the moon thought to have come from originally?
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The Moon is thought to have come from the Earth. In 1975, the giant impact hypothesis was put forward. This suggests that the Earth was hit by a planet about the size of Mars around the time of the formation of the solar system approximately 4.5 billion years ago, and the impact caused part of the outer layer of the Earth to spin off and form what is now the Moon.

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The hypothesis that suggests that life formed near the earth's surface in pools of water is called
aalyn [17]
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Plz help!!!!<br> Kinda in a hurry to catch up on biology rn anything can help!!!
luda_lava [24]

Answer:

16. Control group: Subject A

17. Independent (manipulated) variable: Type of powder

18. Dependent variable: Itching time

19. Explain whether the data supports the advertisement´s claims about its product. Yes, it does.

Explanation:

  • Control group: The control group is used to identify if there are any other factors influencing the results obtained by the treatment in the study (in this case, the new product), from the results that might be a consequence of other factors. The control group must be selected from the same population as the treatment group. Data from an experimental group are compared with the data from a control group. These two groups are identical in all aspects except for the independent variable that the researcher changes in the experimental group to observe how they affect the individuals.  

The experimental group is the one that receives the experimental procedure, with changes in the independent variable.  There can be several experimental groups. In this case, the experimental group is subject B.

  • Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the type of powder is the independent variable.  
  • Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. In the exposed example, inching time is the dependent variable, that depends on the type of powder used.
  • The data <u>does support</u> the advertisement´s claims about its product. The effect of the new product lasts 50% more than the original product. The old powder produced itching for 30 minutes, while the new product produced itching for 45min (15 more minutes, 50% more).
4 0
2 years ago
What is the national language of the united state
ale4655 [162]
English is the national language of the United States.
6 0
2 years ago
Read 2 more answers
In cats, black fur color is caused by an x-linked allele; the other allele at this locus causes orange color. The heterozygote i
Luden [163]

The offspring that will be produced in the cross would have tortoiseshell fur.

<h3>X-linked traits</h3>

In cats, the male is XY while the female is XX.

Assuming that black fur is caused by the allele B and the orange fur is caused by A

A black female will have the genotype X^BX^B

An orange male will have the genotype X^AY^A

Crossing the two:   X^BX^B    x     X^AY^A

Offspring: X^BX^A, X^BY^A, X^BX^A, and X^BY^A

X^BX^A = tortoiseshell fur female

X^BY^A = tortoiseshell fur male

More on x-linked traits can be found here: brainly.com/question/11189684

6 0
2 years ago
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