OpenStudy (anonymous):
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
OpenStudy (anonymous):
I think B .
OpenStudy (abhisar):
Guess the odd one out !
OpenStudy (anonymous):
C .
OpenStudy (abhisar):
The amnion is a membrane that when first formed, closely covers the embryo. It fills with the amniotic fluid which causes the amnion to expand and become the amniotic sac which serves to provide a protective environment for the developing embryo. It is a feature of the amniotes which included reptiles, birds, and mammals. \(\bf Amphibians\) and fish are excluded from this group.
OpenStudy (anonymous):
Ooh .
OpenStudy (abhisar):
Can u tell me which option represents an amphibian ?
OpenStudy (anonymous):
Froggiesss .
OpenStudy (abhisar):
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