What are the most important animals to the great barrier reef?

What field of science did harry hess study?

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

Number and variety of living organisms includes genetic, species, and ecological types