A tadpole develops into an adult frog by the process of Option A: fertilization Option B: metamorphosis

Correct Option: A  Internal fertilization occurs inside female body

Correct Option: B  A zygote contains a single nucleus.

The transformation of the larva into adult through drastic changes is called metamorphosis. Frogs and insects are examples of organisms showing metamorphosis. 

Answer: (ii) proper diet is needed for the rapid growth taking place in their body.  Answer: (i) menstruation starts.  Answer: (ii) chapatti, dal, vegetables. 

Metamorphosis is a process by which animals undergo extreme, rapid physical changes some time after birth. The result of metamorphosis may be change to the organisms’s entire body plan, such...

The correct answer is (2)  The first cell of female gametophytic generation in angiosperm is megaspore. It undergoes three successive mitotic division to form 8-nucleated and 7-celled embryo sac.

The correct answer is (3) The vertebrates process myogenic heart which is self contractile system or autoexcitable; it will thus keep working outside the body for some time.

b. The megaspores develops into an embryo sac, its nuclei would be Diploid

a. Parthenocarpy

(1) Earthworm