Characteristics of this phylum include chitin-containing trophi, which they use to grind up their food and which are contained in a pharyngeal organ called a mastax.
This phylum is unique in that its members do not exhibit growth or repair after embryonic development is complete. Characteristics of this phylum include chitin-containing trophi, which they use to grind up their food and which are contained in a pharyngeal organ called a mastax. One class in this phylum can survive extreme desiccation by leaving itself in a cysted state, known as cryptobiosis; that class is Bdelloidea. The largest class in this phylum is the Monogononta. This pseudocoelomate phylum gets its name from their crown of cilia that draws a vortex of water into their mouth. For 10 points, name this phylum of animals which has a name meaning "wheel bearer" in Latin.
This phylum is unique in that its members do not exhibit growth or repair after embryonic development is complete.
 Rotifera