which of these have two shells connected by a hinge, are sedentary (move very little if at all), and feed by…

which of these have two shells connected by a hinge, are sedentary (move very little if at all), and feed by filtering particles from air and water?\nclass bivalvia\nclass gastropoda
Answer
Brief Explanations:
Bivalves have two shells connected by a hinge, are often sedentary, and filter - feed from air and water. Gastropods typically have a single shell and different feeding and locomotion patterns.
Answer:
Class Bivalvia