Write true or false for the statement: The ovary releases three eggs every month.

List two functions of the ovary in the human female reproductive system.

Dramatic changes of body features associated with puberty are mainly because of the secretion of:

During adolescence,several changes occur in the human body. Mark one change associated with sexual maturation in boys.

Give two differences between a male and a female gamete.

Which among the following is not the function of testes at puberty?
$(i)$ formation of germ cells
$(ii)$ secretion of testosterone
$(iii)$ development of placenta
$(iv)$ secretion of estrogen