Worms

Includes earthworms, leeches, polychaete

• platyhelminthes

• nematoda

• annelida

commonly called flatworms

• platyhelminthes

• nematoda

• annelida

includes tapeworms, planarians, liver

• platyhelminthes

• nematoda

• annelida

Commonly called round worms

• platyhelminthes

• nematoda

• annelida

includes heart worms, pinworms, hookworms

• platyhelminthes

• nematoda

• annelida

If present, what type of skeletons do worms have?

• endoskeleton

• exoskeleton

• hydrostatic

• longitudinal

What type of symmetry is seen in all worm phyla?

• asymmetry

• bilateral symmetry

• biradial symmetry

• radial symmetry

Which two worm phyla include mostly parasitic species?

• Platyhelminthes and nematoda

• Platyhelminthes and annelida

• Nematoda and annelida

Which of the following is an excretory organ of some worms?

• crop

• gizzard

• ocelli

• nephridia

What term refers to organisms that produce both sperm and egg?

• ahermatypic

• gonochronistic

• hermaphrodite

• nematocyst