Question

Which is the second largest phylum of invertebrate ?

Answer 1

1. Invertebrates are the animals that don't have a vertebral column (backbone), are derived from the notochord and are cold-blooded.
2. Mollusca is the second largest phylum of invertebrates.
3. The animals possess a soft and unsegmented body. The body is triploblastic, bilateral symmetrical and coelomates.
4. They are terrestrial as well as aquatic but mostly found in marine and freshwater.
5. Examples: - Pila, Loligo and Octopus.