Question

what is extra embryonic membrane​

Answer 1

Answer:

An extraembryonic membrane is one of the membranes which assist in the development of the embryo. Such membranes occur in a range of animals from humans to insects. They originate from the embryo, but are not considered part of it. They typically perform roles in nutrition, gas exchange, and waste removal.

Answer 2

The thin protective membranes formed outside the embryo in amniotes (reptiles, birds and mammals) which protect it from external shocks, helps in movement, gaseous exchange etc are known as extra embryonic membranes.

These are :-

1. Yolk sac.

2. Amnion.

3. Allantois.

4. Chorion.