Where is the yolk found in a telolecithal egg?

In which of the following organisms is a microlecithal egg (egg with a very small amount of stored food) found?

First polar body is produced during the formation of

Determine the ploidy of the following cells in the process of spermatogenesis:
Spermatozoa,Secondary spermatocyte,Spermatid,Spermatogonia,Primary spermatocyte.

How many primary follicles are left in each ovary in a human female at puberty?

Formation of oogonia in human females is completed in . . . . . . .