Ameander is best described as a

a. depression for swimming.
b. straight streamline into a lake.
c. bend or curve in a stream channel.
d. pond located streamside.

List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

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