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

True sexual reproduction is absent in

Given below are a few statements related to external fertilization (I) The male and female gametes are formed and released simultaneously. (II) Only a few gametes are released into the medium (III) Water is the medium in a majority of organisms exhibiting external fertilization (IV) Offspring formed as a result of external fertilization have better chances of survival than those formed inside an organism.

Why is the offspring formed by asexual reproduction referred to as clone?

Which of the following statements is always true ?

True statemenet regarding sexual reproduction

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?