#Question id: 3484
#Unit 9. Evolution & Diversity of Life Forms
Modern behavioral concepts relate the cost of a behavior to its benefit. Under which relationship might a behavior be performed?
A) cost is greater than the benefit
B) cost is less than the benefit
C) cost is equal to the benefit
#Question id: 3485
#Unit 9. Evolution & Diversity of Life Forms
Optimal foraging involves all of the following except
A) maximizing energy gained by the forager.
B) minimizing energy expended by the forager.
C) securing essential nutrients for the forager.
D) minimizing the risk of predation on the forager.
E) maximizing the population size of the forager
#Question id: 3486
#Unit 9. Evolution & Diversity of Life Forms
Which of the following might affect the foraging behavior of an animal in the context of optimal foraging?
A) risk of predation
B) prey size
C) prey defenses
#Question id: 3487
#Unit 9. Evolution & Diversity of Life Forms
Which of the following is true of innate behaviors?
A) Genes have very little influence on the expression of innate behaviors.
B) Innate behaviors tend to vary considerably among members of a population.
C) Innate behaviors are limited to invertebrate animals.
D) Innate behaviors are expressed in most individuals in a population across a wide range of environmental conditions.
E) Innate behaviors occur in invertebrates and some vertebrates but not in mammals.
#Question id: 3488
#Unit 9. Evolution & Diversity of Life Forms
According to Hamiltonʹs rule,
#Question id: 3489
#Unit 9. Evolution & Diversity of Life Forms
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?