The _______ is an important structure for waste storage in birds and some mammals, but not in humans.
A) allantois
B) yolk sac
C) placenta
D) umbilical cord
E) amnion

Name: The _______ is an important structure for waste storage in birds and some mammals, but not in humans. A) allantois B) yolk sac C) placenta D) umbilical cord E) amnion
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Question

Quizplus · Accepted Answer

The allantois is involved in waste storage and gas exchange in birds and some mammals, but it is not a significant structure in humans.

The _______ Is an Important Structure for Waste Storage in Birds