A) the organism experiences one or a few environments.
B) the organism experiences many environments.
C) the movements of the organism are large relative to the patch sizes.
D) grains are equal to patch size.
E) none of the above

A) the mean conditions
B) the predictability of change
C) the rate of movement of the organism.
D) the predictability of change.
E) none of the above

A) cannot interbreed.
B) are morphologically distinct.
C) inhabit the same region.
D) all of the above
E) none of the above