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aleksley [76]
2 years ago
7

When a skeletal muscle contracts, what is happening at the level of the muscle proteins?

Biology
1 answer:
Margaret [11]2 years ago
6 0
Bulk flow systems move substances faster than simple diffusion.
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3 years ago
Meiosis is called reduction division. When does the reduction in chromosome number occur?
aniked [119]

The reduction in chromosome number occurs during <u>meiosis I.</u>

Chromosomes are long molecules of DNA that contain some or all of an organism's genetic material. In most chromosomes, very long, thin strands of DNA are coated with packaging proteins. In eukaryotic cells, the histones are the most important of these proteins.

Within the nucleus of all cells, DNA molecules are packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly wrapped many times around proteins called histones that support its structure.

Another type of cell division, meiosis, ensures that humans have the same number of chromosomes from generation to generation. This is a two-step process in which the number of chromosomes is halved from 46 to 23 to form sperm and eggs.

Learn more about chromosomes here:-brainly.com/question/11912112

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The forelimbs of a bat and whale are known as A homologous structures B analogous structures C vestigial structures D fossils
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3 years ago
Which of these causes sickle-cell anemia? (1 point)
inysia [295]

Answer:

base pair substitution

Explanation:

4 0
3 years ago
The distance from a wave's equilibrium point to its crest is known as what? Amplitude Trough length Wavelength Wave height
Troyanec [42]
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