Briefly describe characteristics of the hypothetical ancestral mollusk, and tell how each class of mollusks (Caudofoveata, Solenogastres, Monoplacaophora, Scaphopoda, Gastropoda, Bivalvia, Cephalopoda) differs from an ancestral condition with respect to each of the following: Shell
Radula
Food
Mantle cavity and gills
Circulatory system
Head

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

The cluster of developing cells from conception until birth is called an

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.