What makes an immune deficiency disorder so dangerous?

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

What is the most appropriate method of gaining weight (muscle mass)

Why does miranda have that particular vision of dr hildesheim answer?