Extract embryonic membrane like amnion and chorine appeared for the first time:
Correct answer: B. Reptiles
- A. Amphibians
- B. Reptiles
- C. Birds
- D. Fish
Explanation
Embryonic membranes like the amnion and chorion first appeared in reptiles, making option B the correct answer. These membranes are part of the amniotic egg, a key adaptation that allowed reptiles to reproduce on land. Birds also have similar adaptations, but they evolved from reptilian ancestors, not the other way around. Options A, C, and D are incorrect because they do not align with the evolutionary development of embryonic membranes in animals.
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