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

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.