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sveta [45]
3 years ago
9

Heart is to the _____ system as lungs are to the ______ system

Biology
1 answer:
elixir [45]3 years ago
5 0
The answer is A. The heart pumps blood through the circulatory system, and the lungs help the oxygen transport throughout the respiratory system. :)
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The fossil record documents trends in which brains that are large relative to body size evolved in certain lineages, including h
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3 years ago
Describe the three lines of defense your body has for protection against invaders
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3 years ago
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4 0
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lesya [120]

Answer:

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Explanation: that may or may not help, but i hope it does

6 0
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