How can animals have difficulty getting energy? a. there is little sunlight b. there is a large supply of food c. there is a limited supply of food d. they cannot reproduce (i’m going between a and c but i’m not sure)

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems