In a bird species A, the male alone builds the nest, incubates the eggs and feeds the nestling. In bird species B, it is the female that does all that. In bird species C, both sexes contribute equally to the above activities. In species A and B, the uninvolved partner may fly away and mate again. Which sex among A, B and C is most likely to develop colorful plumage during breeding season?

#Question id: 29023

#Unit 9. Evolution & Diversity of Life Forms

Magnitude of genetic drift is dependent on two factor such as frequency of allele as well as population size, which of the following is correct?

a) decrease population size leads to increasing the magnitude of genetic drift

b) maximum magnitude are seeing whenever p=q

c) maximum magnitude are seeing whenever p>q

d) increasing population size also increasing the magnitude of genetic drift

#Question id: 29024

#Unit 9. Evolution & Diversity of Life Forms

#Question id: 29025

#Unit 9. Evolution & Diversity of Life Forms

In a given population of male and female will be 35 and 10. What is the effective population size (ne) for this population?

#Question id: 29026

#Unit 9. Evolution & Diversity of Life Forms

Caused of behaviour are of two types proximate cause and ultimate cause. Given statements about these causes, which of the following is not true?

#Question id: 29027

#Unit 9. Evolution & Diversity of Life Forms

Which of the following is not the characteristics of fixed action pattern?

#Question id: 29028

#Unit 9. Evolution & Diversity of Life Forms

When animal learns not to response to stimulus, this type of Learn behaviour is called____