Question

The best explanation for why male animals so often have more showy ornaments, body features, and displays is:

A) The theory of Island Biogeography

B) Parental Investment Theory

C) The Red Queen Hypothesis

D) The Principle of Independent Assortment

Answer 1

In some species the males contains soome special more showy ornaments,body features and displays some their special skills like building nest,dance,singing etc.So that the females will choose them for mating for the mating season. The thory which describe this phenomena is-

A.  The theory of Island Biogeography: Is associated with the population of any species in a particular land or area reflects the species colonization and their availability and their blance on that area.So this option is incorrect.

B.  Parental Investment Theory: This thory is associated with the sexual selection on the basis of some selective features (like-body aurnaments,parental care,behaviour etc) for choosing a male by the female species.So this option is correct.

C.  The Red Queen Hypothesis: This hypothesis states that the species must constantly adapt the natural changes,evolve themselves in order to survive in the enviournment.So this option is incorrect.

D.  The Principle of Independent Assortment:This theory states that gene independently seperates among them at the time of reproduction, like at the time of meiosis,recombination or when producing gametes.So this option is incorrect.

So the correct answer is-(B) Parenral Investment Theory.