#Question id: 10827
#Section 2: Evolution
A barnacle grows on a whale, doing it no harm. This is an example of
#Question id: 4569
#Section 2: Evolution
Which of the following must exist in a population before natural selection can act upon that population?
#Question id: 11183
#Section 4: Behavioural Ecology
Which of the following is an example of a density-independent mechanism?
#Question id: 4640
#Section 2: Evolution
During drought years on the Galapagos, small, easily eaten seeds become rare, leaving mostly large, hard-cased seeds that only birds with large beaks can eat. If a drought persists for several years, what should one expect to result from natural selection?
#Question id: 3431
#Section 2: Evolution
In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as