In spermatogenesis, each spermatogonium increases in size to form a ________?

In green vegetables, the limiting amino acids is________?

In seed formation the outer integument of the ovule shrinks and forms the seed coat, is called as________?

Methamidophos, moncrotophos are example of________?

Royal Jelly made up of________?

A tail, including the tail-like structure of an aphid:________?