Phylum Platyhelminthes and Nematoda

A tapeworm lives inside of a host's body. This means that tapeworms are _______________. 

• Ectoparasites
• Endoparasites
• Free-living
• Flukes

Flatworms have no true body cavity. This means they are ____________________. 

• Symmetrical
• Sessile
• Coelomates
• Acoelomates

The bodies of flatworms are flattened ___________________. 

• Laterally
• Bilaterally
• Radially
• Dorso-ventrally

A brightly colored flatworm, swimming with a wavelike motion, likely belongs to which class?

• Cestoda
• Trematoda 
• Turbellaria 
• Monogenea 

Tags

NGSS.MS-LS4-2

What is cephalization? 

• Having male and female parts.
• A concentration of sense organs and nervous system at the anterior end of the body. 
• Feeding off of another organism.
• Breathing through the skin.

Which type of roundworm is the most life-threatening canine worm?

• Heartworm
• Pinworm
• Hookworm
• Liverworm

What structure do planaria use for feeding?

• Cilia
• Scolex
• Proglottids
• Pharynx

Which of the following is not a class of the Phylum Platyhelminthes?

• Nematoda
• Trematoda
• Cestoda
• Turbellaria 

If present, which type of skeleton is found in worms?

• Longitudinal
• Circular
• Exoskeleton
• Hydrostatic

Which phylum of worms are pseudoceolomates?

• Platyhelminthes
• Nematoda
• Annelida