Biological Classification - Worms & Molluscs

The video tutorial explores different phyla of worms and mollusks, detailing their habitats, body structures, and systems. It covers Platyhelminthes (flatworms), Nematoda (roundworms), Annelida (segmented worms), and Mollusca (mollusks), highlighting their unique features, such as digestive systems, nervous systems, and parasitic nature.

Explain the body structure of segmented worms.

What are the key characteristics of mollusks as described in the text?