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The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the ________. a. fishes b. birds c. mammals d. rep…

The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the ________. a. fishes b. birds c. mammals d. rep…
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The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the ________.

a. fishes
b. birds
c. mammals
d. reptiles
e. amphibians

User Qubyte
by
8.3k points

2 Answers

5 votes
The best answer among the following choices would be the first option aka A) Fishes because they have backbone and this is a description of their body.
User Jan X Marek
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8.2k points
6 votes
Fishes :) hope this helps

User William Xing
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8.2k points
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