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Incomplete double circulation occurs in
Option: 1
Fishes
Option: 2
Amphibians
Option: 3
Reptiles
Option: 4
Both (2) and (3)
Answers (1)
Heart structure in various groups of animals -
Amphibians and the reptiles (except crocodiles) have a 3-chambered heart with two atria and a single ventricle
-
View full answer
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