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Anna007 [38]
3 years ago
10

What causes the repolarization of the membrane of a neuron after an action potential?

Biology
1 answer:
Gnom [1K]3 years ago
3 0
For a nerve impulse to be sent, an action potential must occur within the neuron. Depolarization of the neuron is necessary for an actionpotential to be sent along the nerve cell. This means that there is an exchange of ions across the cell membrane of the neuron, which is caused by some type of stimulation.
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Grass (that is healthy) looks green because Group of answer choices it emits green light and absorbs other colors. it reflects g
SVETLANKA909090 [29]

Answer:

it reflects green light and absorbs other colors.

Explanation:

The term pigment derives from the Latin pigmentum, which means the <em>substance that produces color</em>.

Pigments provide color to cells and tissues.

In vegetables, we can find different pigments, such as chlorophyll or carotenoids, among others. Plants use these pigments during the photosynthesis process to absorb sunlight and fixate carbon dioxide. Stem, flowers, and other tissue have pigments in their cells that define the organ´s colors.

Pigments are chemical molecules that produce color by the selective absorption of sunlight. Whenever white light meets a pigment, some wavelengths are absorbed by the pigments while others are reflected. The color expressed is the product of the reflection. The reflected spectrum is perceived as color and determined to be the pigment color or the color of an object or organism.

The color that tissue or vegetal organ express will depend on the pigment concentration or the combination of many of them.

The green color is ordinary in most vegetable species. Chlorophyll is responsible for this coloration, present in almost every vegetable species. This pigment absorbs blue and red wavelengths. But they reflect spectrums of green wavelengths, meaning that the expressed color is green in different tones.

6 0
3 years ago
Which of the following occurs during meiosis II?
morpeh [17]

Sister chromatids are separated during meiosis II because homologous chromosomes separate during meiosis I.

<h3>What is Meiosis?</h3>

Meiosis is a particular type of cell division by which gametes (germinal cells are generated) through two division cycles known as Meiosis I and Meiosis II.

During Meiosis I homologous chromosomes are separated, thereby ensuring the correct segregation of sister chromatids during Meiosis II.

In conclusion, sister chromatids are separated during meiosis II because homologous chromosomes separate during meiosis I.

Learn more about meiosis here:

brainly.com/question/8253366

#SPJ1

3 0
2 years ago
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Answer:

cardiovascular

Explanation:

Through vasodilatation or vasoconstriction in the skin heat exchanges with the outside can be regulated. For example during vasodilatation more blood flows, so the tissue will be warmer and more heat will be lost.

3 0
3 years ago
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What are dominant and recessive allels
Contact [7]
They are what gives a person his/her features
Dominant allels are going to be there for sure.
Recessive allels aren't going to be there for sure, but can come out and show.
3 0
3 years ago
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What taxons make up an organism's scientific name (binomial name)?
netineya [11]

Answer:

C) Genus Species

Explanation:

I hope this helped ;)

8 0
3 years ago
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