WebIntroduction to Slugs and Snails. Slugs and snails belong to the Phylum Mollusca and are more closely related to octopi than insects. Mollusks are a large and diverse group of … WebMollusks are invertebrates and include octopus, squid, snails, slugs, clams, and oysters and many others. As diverse as this phylum is, all its animals include three physical traits. They have what is referred to as the visceral …

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Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks . Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion … See more The words mollusc and mollusk are both derived from the French mollusque, which originated from the Latin molluscus, from mollis, soft. Molluscus was itself an adaptation of Aristotle's τὰ μαλάκια ta malákia (the soft … See more Estimates of accepted described living species of molluscs vary from 50,000 to a maximum of 120,000 species. The total number of described species is difficult to estimate because of unresolved synonymy. In 1969 David Nicol estimated the probable total … See more Opinions vary about the number of classes of molluscs; for example, the table below shows seven living classes, and two extinct ones. … See more Fossil record Good evidence exists for the appearance of gastropods (e.g., Aldanella), cephalopods (e.g., See more The most universal features of the body structure of molluscs are a mantle with a significant cavity used for breathing and excretion, and the organization of the nervous system. Many have a calcareous shell. Molluscs have … See more Because of the great range of anatomical diversity among molluscs, many textbooks start the subject of molluscan anatomy by describing what is called an archi-mollusc, hypothetical … See more Feeding Most molluscs are herbivorous, grazing on algae or filter feeders. For those grazing, two feeding strategies are predominant. Some feed on microscopic, filamentous algae, often using their radula as a 'rake' to comb up filaments … See more WebNov 14, 2024 · Snails and slugs belong to a group of invertebrates called mollusks. There are over 110,000 species of mollusks, 90,000 of which are slugs and snails. Other examples of mollusks are clams, oysters ... nerd emoji music download

Snails and Slugs: Phylum Mollusca, Class Gastropoda The ...

WebGastropods are the largest group of mollusks, making up 80 percent of the phylum. This group includes snails and slugs on land and abalones and conchs in the ocean. The origin … WebDec 13, 2024 · Gastropods are the most diverse family of mollusks, including over 60,000 species of snails and slugs that live in marine, freshwater, and terrestrial habitats. … WebNov 14, 2024 · Mollusks come from the word “mollies,” which means soft. Mollusks are invertebrates with soft bodies and belong to the family of Phylum Mollusca. Many live in marine environments, while others prefer freshwater or land environments. Phylum Mollusca includes over 80,000 species. Mollusk species can be herbivores, parasites, or predators. nerd emoji song download