Second largest phylum of invertebrates is which of the following?

Explanation

The second largest phylum of invertebrates is the Mollusca. Molluscs are a diverse group of animals that includes snails, clams, octopuses, and squid, among others. The phylum Mollusca is characterized by a soft body, often protected by a hard shell and a muscular foot used for locomotion. They also have a specialized feeding structure called a radula, and some molluscs have well-developed heads and complex nervous systems. The largest phylum of invertebrates is Arthropoda, which includes insects, spiders, crustaceans, and other related animals.