Which of the following organisms does not reproduce by binary fission?

$(a)$ 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.

Which organ is responsible for the production of eggs in females?

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

What is the function of Copper-$T$ used by some women? What is its side effect?

'Regeneration is not reproduction'. Justify this statement with reason.