Which of the following are types of reproduction in organisms?

Assertion $A$: No organism is immortal.
Reason $R$: Death is a mysterious phenomenon.
Which option is correct for Assertion $A$ and Reason $R$?

Which type of reproduction occurs in $Amoeba$ under unfavorable conditions?

Select the incorrect statement:

Synchrony between the maturity of sexes and the release of a large number of gametes is shown by:

Which of the following statements is incorrect?
$(i)$ Bamboo species flower only once in their lifetime,generally after $50-100$ years,produce a large number of fruits,and die.
$(ii)$ In animals,the juvenile phase is followed by morphological and physiological changes prior to active reproductive behaviour.
$(iii)$ The reproductive phase is of the same duration in all organisms.
$(iv)$ The juvenile phase is the period of growth between the birth of an individual until it reaches reproductive maturity.