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Pavel [41]
3 years ago
12

What two factors combine to determine heart rate?

Biology
1 answer:
sveticcg [70]3 years ago
7 0
The  two factors that combine to determine the heart rate are the extrinsic and intrinsic controls.
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The starfish is ecosystem balancer

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What two ions make up most of the salt in seawater with percents?
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Why do leaves appear green?
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<u>Answer:</u>

The correct answer option is B. Green wavelengths are the least used in photosynthesis.

<u>Explanation:</u>

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d

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