The immature stage of eggs is called as:

Identify the follicle showing the presence of an antrum in the given diagram.

Enzyme required for fertilization of sperm and ovum is located in the ......... of sperms.

The covering of ovum at ovulation is . . . . . . .

The human sperms were first seen and discovered by

Given below are two statements:
Statement $I$:
The release of sperms into the seminiferous tubules is called spermiation.
Statement $II$:
Spermiogenesis is the process of formation of sperms from spermatogonia.
In the light of the above statements,choose the most appropriate answer from the options given below: