WebStudy with Quizlet and memorize flashcards containing terms like What is the evolutionary advantage of having a segmented body?, The most numerous group of mollusks are _____., _____ have the longest evolutionary history of the … WebThey are found in salt- and freshwater habitats, and they include slugs, the only mollusks that live on land. bivalves. found in marine and freshwater environments. Most are …
Solved There are eight lineages of mollusks, though some are
WebThere are four major groups within the phylum Mollusca: Class Polyplacophora consists of chitons, snail-like molluscs with eight-part overlapping scale shells (Fig. 3.51 A).; Class Bivalvia are molluscs with hinged two-part shells (Fig. 3.51 C). Examples include clams, oysters, mussels, and scallops. Class Cephalopoda are molluscs with large heads, large … WebJan 13, 2024 · The Mollusca phylum is one of the largest and most diverse groups of organisms in the world (second only to the arthropods). Gastropods are the most numerous mollusks, while the giant squid and colossal squid are the biggest. Mollusks alone make up 23% of all marine species, making it the largest phylum in the marine world. megan maroney new song
Invertebrates National Wildlife Federation
WebApr 12, 2024 · The most numerous class of animals on Earth is the insects. They account for over 70% of all known animal species, with estimates of their total population ranging from 10 quintillion to 10 septillion. ... reptiles, and fish. In contrast, invertebrates include animals like insects, arachnids, mollusks, and crustaceans. While both groups are ... WebMollusca is the second-largest phylum of invertebrate animals ... (snails and slugs) are by far the most numerous molluscs and account for 80% of the total ... (defining characteristics) to apply to all modern groups is difficult. … WebJun 8, 2024 · Mollusks can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. … megan marshack pics