In primates, social groups and mating systems are also associated with physical
ID: 57310 • Letter: I
Question
In primates, social groups and mating systems are also associated with physical characteristics. Which of the following is correct?
Select one:
a. In one-male multi-female groups, males have smaller canines than females, and are not involved in parental care.
b. In pair-bonded, males have larger canines than females, and are also involved in parental care.
c. In multi-male multi-female groups, males have larger canines than females, and are not involved in parental care.
Sexual selection is often much stronger than ordinary natural selection in changing behavior and morphology
Select one:
True
False
Explanation / Answer
1. a. In one-male multi-female groups, males have smaller canines than females, and are not involved in parental care. -------------> FALSE (In one-male multi-female groups, one female mates with only one male but a male mates with more than two females, females provide the maxium parental care, but males are also invovled, Eg: Gorilla)
b. In pair-bonded, males have larger canines than females, and are also involved in parental care.-------> TRUE (In pair-bonded species such as humans, males have larger lower canines than females Eg: humans, this sexual dimorphism is evolved as a protective mechanism against predators).
c. In multi-male multi-female groups, males have larger canines than females, and are not involved in parental care. ----> FALSE (in some multi-male multi-female groups, males do take care of their children, Eg: baboons)