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ivann1987 [24]
3 years ago
5

13. What causes a heartbeat?…………

Biology
2 answers:
s2008m [1.1K]3 years ago
4 0

Answer:

A

Explanation:

I think i remember that from heatlth.

brilliants [131]3 years ago
3 0

Answer:

A

Explanation:

Stretching of the atrium and ventricle muscles

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The fertilization of a female egg cell with a male sperm cell is also referred to as______________.
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3 years ago
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Which would most likely cause a forced migration due to loss of habitat?
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Answer:

a short-term change a long-term change death adaptation. A long-term change would most likely cause a forced migration due to loss of habitat. A long-term change would most likely cause a forced migration due to loss of habitat.

Explanation:

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3 years ago
Butanol was used in the production of:
hram777 [196]

Answer:

Synthetic rubber.

Explanation:

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Butanol was used in the production of synthetic (artificial) rubber through a fermentation process.

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2 years ago
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