Flatworms

Two types of unsegmented worms are the roundworms and the flatworms.

• True

• False

What phylum do flatworms belong too?

• Annelida

• Platyhelminthes

• Nematoda

Flatworms have what kind of body cavity?

• Acoelomate

• Pseudocoelomate

• Coelomate

What kind of symmetry do flatworms have?

• They are asymmetrical

• Radial symmetry

• Bilateral Symmetry

Flatworms do not have gills or lungs and rely of diffusion through the skin to breathe

• True

• False

The structure that acts as a kidney in a planarian flatworm is called:

• pharynx

• ganglia

• flame cell

The muscular tube near the mouth that aids in getting food is called the:

• Pharynx

• Gastrovascular Cavity

• Flame cell

The planarian does not have a ganglia - small mass of nerves resembling a brain

• True

• False

The structure that detects light in the planarian flatworm is the

• pharynx

• flame cells

• Eyespots

Planarians are free-living. They do not need a host to survive.

• True

• False