Practice Questions for Phylum Platyhelminthes

1. Flat worms have ____________ symmetry.
2. ___________ symmetry --> ____________ --> increase in ___________ --> ___________
3. T/F - Members of Platyhelminthes are diploblastic acoelomates
4. A coelom is an internal _______-_________ body cavity surrounded by _____________
5. A ___________ is a bundle of neurons.
6. T/F - Platyhelminths have a true excretory system but clack a respiratory system.
7. Class ____________ are ectoparasitic flukes
8. Class ____________ are mostly free-living aquatic organisms
9. Class ____________ are endoparasitic flukes
10. Class ____________ are endoparasitic tapeworms
11. T/F - The digestive system of planarians is a simple single canal
12. T/F - Platyheliminths have a complete gut.
13. The excretory system is lined with ______________ that beat a flagella to remove waste from the body and regulate solute concentration
14. Turbellarians are ____________, containing both male and female reproductive organs
15. The ventral surface of a Turbellarian is lined with ___________
16. T/F - Planarians have only Longitudinal muscles
17. The ___________ glads produce the mucus