3. Describe the functions of
3. Describe the functions of

(a) Amnion

(b) Placenta

Solution:-

The space between the amnion and the embryo is filled by amniotic fluid.

1. Protects the embryo from physical injury caused by jerks or mechanical shocks.

2. Maintains a constant pressure surrounding the embryo.

3. Allows for some restricted mobility of the foetus. (b) Placenta

(b) The following are the functions:

1. The growing embryo is a live thing. It requires food and air to survive.

2. It excretes nitrogenous wastes and carbon dioxide, both of which must be removed on a regular basis.

3. The placenta functions as an endocrine gland as well.