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zvonat [6]
3 years ago
12

What are the 4 steps in the cell cycle

Biology
1 answer:
Dafna11 [192]3 years ago
4 0

The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.

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The sympathetic nervous system releases hormones known as catecholamines which increase the heart rate.

<h3>What is a heart rate? </h3>

it is the number of contractions of the heart per minute.

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These are the neurotransmitters that have a catechol and a side chain that is an amine.

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<h3>Where are these hormones released?</h3>

These hormones are released in the blood.

<h3>How does this hormone increase the heart rate?</h3>
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To learn more about sympathetic nervous system, hormones and heart rate here,

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