$A$ temporary endocrine gland formed after ovulation in the ovary is:

Name the hormones involved in the regulation of spermatogenesis.

Which of the following statements is incorrect regarding human spermatozoa?

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:

Cleavage in bird's egg is

Which cells in the mammalian testis provide nutrition to the developing spermatozoa?