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The amnion is an extra-embryonic membrane that surrounds the embryo and encases it in amniotic fluid.

Which animal lacks an amnion?
A) frog
B) lizard
C) pigeon

User Anya
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2 Answers

1 vote
A is the answer bruh
User Levi Morrison
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The frog is the one animal that lacks an amnion. We knwo this because An amnion is only developed in mammals and reptiles but not not amphibians. I hope this is what you need
User Phil Lord
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