Apopulation of animals feeds entirely on plants. some of these animals are good at digesting plant a, while others are good at digesting plant b, and others are good at digesting plant c. what might be an advantage of a single population of animals having a large amount of variability surrounding certain traits? a. it increases the chance that some members of the population will survive under changing environmental conditions. b. it makes it more difficult for predators to find members of this population. c. it makes it less likely that the population will split into different species when selective pressures are increased. d. it decreases the chance that the population's offspring will survive.