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Pachacha [2.7K]
3 years ago
6

Which organism does not have a double loop circulatory system A) bird B)fish C) human D) dog

Biology
1 answer:
natta225 [31]3 years ago
5 0
Well double loop circulatory systems are present in mammals and bird if I remember correctly, since fish is the only animal that is that a mammal or a bird that would be the answer, B.
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