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Question

The embryo is surrounded with amnion in

A
Toad
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B
Snake
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C
Fish
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D
Cock roach
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Solution

The correct option is B Snake
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 amniotes which includes reptiles, birds and mammals.
Of the given options, snake is the only one which fits in this category (as it is a reptile).
Therefore, the correct answer is option B.

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