Both prokaryote and eukaryote cells have this structure. it maintain homeostasis and is a boundary between the inside of the cell and the outside environment. it is the a) nucleus. b) membrane. c) cytoplasm. d) cell wall.

Which describes a difference between cephalopods and gastropods? cephalopods have a water vascular system, and gastropods have an open circulatory system. cephalopods live only in ocean environments, and gastropods live in a variety of environments. cephalopods have a simple nervous system, and gastropods have a complex nervous system. cephalopods are the largest group of mollusks, and gastropods are the smallest group of mollusks.