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Sphinxa [80]
3 years ago
14

The only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart

are the _____.
Biology
1 answer:
drek231 [11]3 years ago
4 0

The answer is <u>fishes</u>. Fish are unique in the aspect that they are the only vertebrates that blood circulates directly from respiratory organs to body tissues without returning to the heart first.

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