53. Females are likely to mate with more than one male when
Select one:
a. resources can�t be monopolized, as in robins who eatworms.
b. only some males are able to get good territories.
c. predation on eggs or on young is high.
d. the male stays with the young and/or the eggs.
e. both c and d
54. In many species, females are certain of their parenthood;males are not. Eggs and live births require a larger investment ofenergy than do sperm. Therefore,
Select one:
a. Male success is more dependent than is female success on thenumber of times he mates.
b. Female success is more dependent than is male success on thenumber of times she mates.
55. In many species, females are certain of their parenthood;males are not. Eggs and live births require are larger investmentof energy than do sperm. Therefore,
Select one:
a. Females tend to be more competitive; males tend to be morechoosey.
b. Males tend to be more competitive; females tend to be morechoosey.
c. Female competition results in weaponry.
