the biggest threat to the health of our estuaries is the
a. erosion due to the constant movement of water, either tides, sea level flux, or currents.
b. direct and indirect activities of man that contribute to pollution and deposition of sediments.

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

How does an angiosperm prevent self pollination

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.