Which type of land has less percolation?\
Farmland
Forests
Grassland
Urban areas

In what for do plants utilize nitrogen? why do they need nitrogen?

Where can you find prokaryotic and eukaryotic cells?

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