Dec 31, 2024 · Mollusk, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. …

Mollusks are invertebrates, meaning that they do not have a backbone. They have a soft body that holds the heart, liver, digestive system, and other important organs. Most mollusks have a …

mollusk, or mollusc, Any of some 75,000 species of soft-bodied invertebrate animals (phylum Mollusca), many of which are wholly or partly enclosed in a calcium carbonate shell secreted …

Nov 30, 2024 · Gastropod, any member of more than 65,000 animal species belonging to the class Gastropoda, the largest group in the phylum Mollusca. The class is made up of the …

Nov 11, 2024 · Mollusks are soft-bodied invertebrates of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. …

The large group of animals called mollusks live on land and in both freshwater and salt water. They constitute the phylum Mollusca, a major group of animals known to have as many as …

Dec 31, 2024 · The fossil record gives little clue about the origin of mollusks and how the classes differentiated in Precambrian times. Phylum Mollusca has about 50,000 species in the classes …

Dec 31, 2024 · Mollusk - Gastropods, Bivalves, Cephalopods: Mollusks are primarily of separate sexes, and the reproductive organs (gonads) are simple. While some reproduce by …

Mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.

Jan 3, 2025 · Mussel, any of numerous bivalve mollusks belonging to the marine family Mytilidae and to the freshwater family Unionidae. Worldwide in distribution, they are most common in …