In a certain breed of dogs, black hair is dominant and brown hair is recessive. if two parents are heterozygous for black hair, what is the probability that their offspring will be brown?

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.