Which of the following organisms breed only once in their lifetime?
$I -$ Bamboo,$II -$ Birds,$III -$ Mammals,$IV -$ Deep sea fish,$V -$ Pacific salmon fish

Select the incorrect pair.

Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?

Asexual reproduction is common in

Life span of Cow is $20-25\, years.$ What is the life span of horse?

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.