Question

The size of the egg chiefly depends upon the
(a) size of the animal
(b) amount of yolk reserves in it
(c) amount of food taken by the mother
(d) all the above

Answer 1

The size of the egg chiefly depends upon the

option:(b) amount of yolk reserves in it

because of the following reason

*In vertebrates they vary in size from 0.07mm.

*The size of the egg chiefly depends upon the amount of yolk reserves in it.

* The egg of mammals are minute with very little yolk.

Answer 2

The size of the egg chiefly depends upon the amount of food taken by the mother.

Explanation:

• The size of the egg depends on various factors like the breed type, the bodyweight of the bird during rearing, the nutrition, optimal environmental temperature and light.  
• The amount of food taken by the mother and its nutritive value plays an important factor in determining the size of the eggs.
• A good amount of protein and fat-containing feed will yield a nutritious as well as bigger sized eggs.
• Increased feeding also helps to increase the bird’s body weight which also helps to yield bigger eggs .