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Evgen [1.6K]
3 years ago
5

How is muscle contraction reversed? A. Calcium binds to calmodulin and is quickly degraded to relieve calcium’s inhibition of tr

opomyosin. B. Calcium is neutralized by an influx of negatively charged ions, which block calcium from binding to myosin. C. Calcium ion pumps in the sarcoplasmic reticulum reduce the cytosolic calcium levels and tropomyosin blocks the myosin-binding site on actin. D. Calcium is pumped out of the cell to reverse the voltage and cause myosin to degrade
Biology
1 answer:
EastWind [94]3 years ago
8 0

Answer:

When the stimulation of the motor neuron providing the impulse to the muscle fibers stops, the chemical reaction that causes the rearrangement of the muscle fibers' proteins is stopped.

Explanation:

This reverses the chemical processes in the muscle fibers and the muscle relaxes. hope this helps you :)

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Glycolysis is an example of a metabolic pathway that is utilized by all human body tissues. Other pathways are much more promine
AnnyKZ [126]

Answer:

1. Liver

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3. Mitochondria

4. Lumen of the small intestines

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Explanation:

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4 0
2 years ago
in addition to keratinocytes, the stratum spinosum also contains another epidermal cell type called epidermal ______ cells that
WARRIOR [948]

Keratinocytes are differentiated skin cells found in the outermost layer of the epidermis. Dendritic cells are antigen-presenting cells that play important roles in the adaptive immune response.

  • In addition to keratinocytes, the <em>stratum spinosum</em> also contains another epidermal cell type called epidermal DENDRITIC cells that help to fight infection.

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  • Dendritic cells are antigen-presenting cells that are capable of processing harmful antigens in order to present them on the cell surface to the T cells of the immune system.

Learn more in:

brainly.com/question/6955146?referrer=searchResults

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mario62 [17]
If he studied a small sample it wouldn't be a representative sample. since he got such a large sample there is a chance most likely all organisms follow the rules of evolution.
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3 years ago
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Diamonds are extremely————and graphite(pencil lead) is ————.
Alinara [238K]

Answer:

Diamonds are extremely durable and graphite (pencil lead) is very fragile.

Explanation:

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