Long neck in giraffes is used to illustrate the theory of
Use and Disuse
Origin of species
Origin of life
Natural selection
Correct answer is A
The giraffe’s long neck is a perfect adaptation to the animal’s natural habitat. Clearly the giraffe evolved this uncommon and helpful trait in order to reach those nourishing leaves. That’s how natural selection works.
Use and disuse' theory in human life advocate the idea that animals acquired characteristics after using certain physical traits constantly.