Gujarati
2.Human Reproduction
normal

Tertiary egg membranes are lacking in mammals with the exception of the

A

Euetherians

B

Metatherians

C

Prototherians

D

None of the above

Solution

(c)Tertiary egg membrane are lacking in mammals with the exception of prototherian. It is secreted by the oviduct or accessory female reproductive organ.

Standard 12
Biology

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