Chapter 23, Problem 6FTB

Three major groups within the mollusks are the two-shelled clams and scallops called ____; the foot-crawling snails and slugs called _____ and the tentacled squid and octopuses called _____ Members of the largest animal phylum are called _______. Three important groups within this phylum are the six-legged, often flying ____; the eight-legged spiders and mites called ____; and the mostly aquatic__.