4.) How does the foot differ in the 4 classes of mollusks?

5.) Name and describe two features of the annelids.

Question

4.)	How does the foot differ in the 4 classes of mollusks?

5.)	Name and describe two features of the annelids.

anonymous · Answer

please help am studying for a test

dominantvampire · Answer

http://tolweb.org/accessory/Characteristics_of_Annelida?acc_id=57

dominantvampire · Answer

itll help you (:

dominantvampire · Answer

Foot
A 50-second video of snails (most likely Natica chemnitzi and Cerithium stercusmuscaram) feeding on the sea floor in the Sea of Cortez
The underside consists of a muscular foot, which has adapted to different purposes in different classes. The foot carries a pair of statocysts, which act as balance sensors. In gastropods, it secretes mucus as a lubricant to aid movement. In forms having only a top shell, such as limpets, the foot acts as a sucker attaching the animal to a hard surface, and the vertical muscles clamp the shell down over it; in other molluscs, the vertical muscles pull the foot and other exposed soft parts into the shell.[9] In bivalves, the foot is adapted for burrowing into the sediment 4 in cephalopods it is used for jet propulsion and the tentacles and arms are derived from the foot