Secondary succession occurs in ecosystems without soil

True or false?

Why can't you grow plants with adhesion water?

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

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above