georgancaashaundic
georgancaashaundic georgancaashaundic
  • 13-12-2016
  • Biology
contestada

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

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pkmnmushy
pkmnmushy pkmnmushy
  • 19-12-2016
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
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GoldchainsCALI
GoldchainsCALI GoldchainsCALI
  • 22-12-2016
A is the answer bruh
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