Which of the following is not a bisexual animal?

The external stimulus which induces cleavage in an unfertilized ovum is called:

Identify the correct sentence.

Select the correct option for external fertilization.

How many main methods of reproduction are there?

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 $R$?