Question 1. when the mean value of variation is selected against, selection results.
disruptive
directional
stabilizing
no
question 2. punctuated equilibrium refers to:
slow, steady evolution of a small isolated population
rapid and continuous evolution of a population
rapid evolution of a population followed by periods of little change
none of these
question 3. special mating plumage produced by birds during a time of year is an example of:
a reproductive isolating mechanism
winter coloration to blend into the background
as aspect of aging of the birds as they become old and senile
none of these