What is a, b, c, and d? options : ecosystem individual community population species

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

Explain how the political influence of african americans leaders became weaker.

When plants use sunlight to make food, the energy of sunlight is