The estrous cycle occurs in

In which of the following organisms are gametes produced through mitosis?

Distinguish between asexual and sexual reproduction. Why is vegetative reproduction also considered as a type of asexual reproduction?

In $Ophioglossum$ (a fern),the chromosome number in a gamete is ..... and in potato,the chromosome number in a gamete is ....

Between an annual and a perennial plant,which one has a shorter juvenile phase? Give one reason.

Assertion $A$: Continuity of life is maintained from generation to generation in living organisms.
Reason $R$: Living organisms produce new organisms similar to themselves through reproduction at maturity.
Which option is correct for Assertion $A$ and Reason $R$?