Give an advantage of vegetative propagation.

Explain how offspring and parents of organisms reproducing sexually have the same number of chromosomes?

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

What is the advantage of reproduction through spores in the case of $Rhizopus$?

$(a)$ Draw a sectional view of the human female reproductive system and label the parts where:
$(i)$ eggs develop.
$(ii)$ fertilization takes place.
$(iii)$ the fertilized egg gets implanted.
$(b)$ Describe,in brief,the changes the uterus undergoes:
$(i)$ to receive the zygote.
$(ii)$ if the zygote is not formed.

Can we find variations in an asexually reproducing organism like bacteria? Write yes or no and give a reason in support of your answer.