Which of the following example of variation is not important from an evolutionary standpoint?
Genetic differences between individual organisms comprising the population
Inherited difference between individual organisms comprising the population
Both $(a)$ and $(b)$
Difference due to diet, health, age and accident that have no affect on an individual's ability to survive and reproduce
In the origin of life, microspheres are most primitive protobiont, which have a membrane of
Natural selection leads to the directional change when
Gill clefts and notochord appear in the embryonic development of all vertebrates from fishes to mammals. This supports the theory of
Which one of the following sets represents the correct sequence of the evolution of man