Refer to the following experiment, which is designed to test the co evolutionary relationships among an unpalatable butterfly (the  monarch),  a  palatable  butterfly  (the  viceroy),  and  a  butterfly  predator  (the  jay).  Monarch butterflies are reared on three diets: milkweed (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. Viceroy butterflies, mimics of monarchs, also are reared on three diets: willows (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. In trial 1 of the first experiment, adult butterflies reared on a particular diet are presented one at a  time  at  1-hour  intervals  to  jays  and  the  jays  are  allowed  to  feed.  Each jay is  fed  until  it refuses to eat the butterfly presented, but no more than 12 butterflies are presented to a jay during a particular test. Five birds are used for each test; therefore, up to 60 butterflies can be consumed for each diet test. The observer records the actual number of butterflies  eaten. In trial 2, the experiment is repeated 2 weeks later. In the second experiment, the butterflies are reared on the same diets as in experiment 1. However, when they are offered to jays, some jays receive a monarch  reared  on  milkweed  before  being  offered  the  butterflies  reared  on  the  experimental  diets;  the  other  group  of jays is  first given a viceroy reared on willow before being  offered the butterflies reared on the experimental diets. The initial butterfly offered is included in the total number eaten, but no more than 12 butterflies are presented to each jay.

The data in the table indicate which of the following?

#Question id: 3499

#Unit 11. Evolution and Behavior

In some jacana species, males take care of the eggs and young, and females compete among themselves for territories that contain one to several males. Female jacanas are significantly larger than males. Which of these statements would you predict to be true of this bird species?

a. Male jacana fitness is primarily limited by ability to take care of eggs and raise young.

b. Female jacana fitness is limited by the number of males in her territory with which a female mates.

c. Variation in reproductive success should be greater in male jacanas than in females.

d. Variation in reproductive success should be greater in female jacanas than in males.

e. Males and females have equal variation in reproductive success.

#Question id: 3500

#Unit 11. Evolution and Behavior

To call a behavior altruistic, an evolutionary biologist will have to demonstrate that

A) These behavior is decrease the individual fitness of the donor and increases the individual fitness of the recipient

B) These behavior is increases the individual fitness of both the donor and the recipient

C) Overall increase the inclusive fitness of the population

D) These behavior depend on genetic relation

Which of the following above statement is correct?

#Question id: 3501

#Unit 11. Evolution and Behavior

following graph related with mate choice  during natural selection ? Which of the following correct?

a. male investment exceed  that of female

b. female investment exceed  that of male

c. Reproductive investment by the sexes is strongly influenced by differences in the degree of parental investment

d.leads to male mate choice

e. overall increase fitness

f.female mate choice

#Question id: 3502

#Unit 11. Evolution and Behavior

Sexual dimorphism (SD) is a pattern that is seen throughout the animal kingdom and differences between the sexes in coloration are common in many organisms. Following some statement are given

A) There are many mechanisms that drive the evolution of SD, the most accepted mechanism being sexual selection

B) Mate choice is an important proximate mechanism of sexual selection, often the sex with the higher reproductive investment is the ‘choosy’ sex

C) Larger species are more sexually dimorphic than smaller species

D) Terrestrial species tend to be more sexually dimorphic than arboreal species

Which of the following above statement is correct?

Which one of the following is correct?

#Question id: 3503

#Unit 11. Evolution and Behavior

Following figure shown mate choice, following some statement is given

A) Male mate choice

B) More variance of matting success in female

C) Polygyny

D) More variance of matting success in male

E) Female mate choice

F) Polyandry

#Question id: 3504

#Unit 11. Evolution and Behavior

Bird has a choice of four food resource with following character . assume all resource are equally abundant Following sequence of preference for resource ?