Where are the testes located in human males?

What changes are observed in the uterus if fertilisation does not occur?

State whether the following statement is true or false: Fertilization takes place in the ovaries.

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

Write true or false for the statement: The development of the child inside the mother's body takes approximately eleven months.

"The chromosomal number of the sexually reproducing parents and their offspring is the same." Justify this statement.