EVOLUTION
EVOLUTION OF A POPULATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It occurs when an event drastically reduces population size and then the population rebounds
|
|
|
A small sample of a population settles in a location separated from the rest of the population
|
|
|
The process in which humans select for or against particular features in organisms
|
|
|
Members of one sex choose mates with particular features
|
Detailed explanation-1: -He recognized two mechanisms of sexual selection: intrasexual selection, or competition between members of the same sex (usually males) for access to mates, and intersexual selection, where members of one sex (usually females) choose members of the opposite sex.
Detailed explanation-2: -Sexual selection is a mode of natural selection in which members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection).
Detailed explanation-3: -Sexual selection can also come about because a trait-the antlers of a stag, for example-increases prowess in competition with members of the same sex. Stags, rams, and bulls use antlers or horns in contests of strength; a winning male usually secures more female mates.
Detailed explanation-4: -Second, we define sexual selection: sexual selection is any selection that arises from fitness differences associated with nonrandom success in the competition for access to gametes for fertilization.
Detailed explanation-5: -Sexual selection is a “special case” of natural selection. Sexual selection acts on an organism’s ability to obtain (often by any means necessary!) or successfully copulate with a mate.