What is the cause of the differences in the offspring?

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

Nucleic acid certain protein cell membranes certain carbohydrates

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite