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How are the respiratory and circulatory systems connected? A. They communicate using neuroendocrine cells B. They connect across synapses C. They trade oxygen and carbon dioxide…

How are the respiratory and circulatory systems connected? A. They communicate using neuroendocrine cells B. They connect across synapses C. They trade oxygen and carbon dioxide…
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How are the respiratory and circulatory systems connected?

A. They communicate using neuroendocrine cells
B. They connect across synapses
C. They trade oxygen and carbon dioxide
D. They send hormones to each other

asked
User Nathan Grigg
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7.6k points

1 Answer

3 votes
it k's A. or C........
answered
User Vstrien
by
7.8k points
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