Question

there are three classes of sponges in the phylum porifera. which class is known as the \glass sponges\ and live in the deepest parts of the ocean? class demospongiae class hexactinellida

Explanation:

Class Hexactinellida is known as "glass sponges" due to their silica - based spicules that form a glass - like lattice structure. They are typically found in the deep - sea environment. Class Demospongiae has spongin and/or siliceous spicules but is not characterized as "glass sponges" in the same distinct way as Hexactinellida.

Answer:

Class Hexactinellida