Asexual reproduction is common in

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 $R$?

Which of the following organisms possess the power of regeneration?

The period from birth to natural death is called

Which of the following organisms are non-reproductive?

In a practical test, a student has to identify the organisms in which syngamy does not occur. In those organisms, the female gamete undergoes development to form new organisms without fertilization. This phenomenon is called "$X$". Identify the organisms and the phenomenon "$X$".