Science Final

Worms and insects are both vertebrates.
True False

In the name Ursus maritimus the first word in the name refers to the species.
True False

Turbellaria is a class of parasitic flatworms.
True False

An order is a broad taxonomic category composed of similar phyla.
True False

Some sponges live on lake bottoms, while others are found on the seafloor.
True False

Most sponges have two layers of cells.
True False

Planaria are parasitic roundworms.
True False

An organism may have different common names that vary from area to area and language to language.
True False

Organisms that spend their entire adult lives attached to one spot are said to be .

A person who has trichinosis likely contracted it from .

A group of phylums is called a(n) .

In diagram 23-2, collar cells that catch the spongge's food are located at .

In diagram 23-2, spicules are located at .

The only phylum to have a gastrovascular cavity is the .