In northern canada a population of rabbits was predominantly white in color. the allele for white color is recessive while the allele for gray color is dominant. over the last several decades, the average annual temperature of this area has increased and the long-term deposits of ice and snow have become scarce. this is an example of directional selection which tends to decrease genetic diversity

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

How does secondary succession differ from primary succession?