NEET BIOLOGY

Detailed explanation-1: -The correct answer is Mollusca. Mollusca is the second-largest invertebrate animal phylum after Arthropoda. They are the largest marine phylum, accounting for about 23% of all marine species. Snails and slugs belong to a broad taxonomic class of invertebrates within the phylum of Mollusca called the Gastropoda.

Detailed explanation-2: -The gastropods (/ˈɡæstrəpɒdz/), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (/ɡæsˈtrɒpədə/).

Detailed explanation-3: -Invertebrates that you may be familiar with include spiders, worms, snails, lobsters, crabs and insects like butterflies.

Detailed explanation-4: -An invertebrate is a cold-blooded animal with no backbone. Invertebrates can live on land-like insects, spiders, and worms-or in water. Marine invertebrates include crustaceans (such as crabs and lobsters), mollusks (such as squids and clams), and coral.

Detailed explanation-5: -Worldwide in distribution, they include animals as diverse as sea stars, sea urchins, earthworms, sponges, jellyfish, lobsters, crabs, insects, spiders, snails, clams, and squid.