Are bivalves protostomes or deuterostomes?

Why is it important that fibrin is insoluble in water?

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance