Where are the sperm heads found embedded to survive after spermatogenesis?

Acrosome of sperm is found in

Where are living organisms found?

Where are Taiga found in India?

Define spermatogenesis. Where does it take place ? Tabulate difference between spermatogenesis and oogenesis.

Define oogenesis. Where does it occur ? Tabulate one difference between spermatogenesis and oogenesis.

Where is petroleum found in India?