The crayfish scavenge for dead fish and decayed vegetation at the bottom of the pond. this describes the crayfish's

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?