A) Size of the animal
B) Amount of yolk reserves in it
C) Amount of food taken by the mother
D) All the above
Correct Answer: B
Solution :
In vertebrates they vary in size from 0.07 mm. The size of the egg chiefly depends upon the amounts of yolk reserves in it. Sharks and rays among fishes, reptiles and birds generally lay eggs of larger dimension. The egg of mammals are minute with very little yolk.
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