Practice problem
Which of the following is an example of behavioral isolation?
Two different populations of flowers exist in the same area. Population A blooms in the spring and population B blooms in the fall.
Two populations of birds within the same area have developed two different mating calls. Population A does not respond to population B's mating call.
The formation of a river divides a population of foxes into two groups. The groups have no way of crossing the river.
Two species of clown fish cannot produce fertile offspring when they reproduce.
Type a concept, like “slope” or “photosynthesis”.
