What kind of cross might tell you if a black guinea pig is bb or bb

What is the importantence of the carbon and nitretan cycles in the environment

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

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots