Bio 2.2 Lab Exam 2: Platyhelmenthes
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What is parenchyma?
Solid connective tissue that encases the organs of flat worms.
What are the three classes of platyhelminthes?
Are the class trematoda free-living or parasitic?
Are the class cestoda free-living or parasitic?
Are the class turbellaria free-living or parasitic?
What class are these animals in?
How do planarians reproduce?
Monoecious, both ovaries and testes.
How do planaria cope with osmoregulation?
They use hundreds of protonephridia composed of a flagellated flame cell that waves to create a current and a tube cell that carries the excess water out through the nephridiopore.
- A: Oral sucker/pharynx
- B: Ventral sucker
- C: Uterus
- D: Ovaries
- E: Testes
Draw the life cycle of the liver fluke (Clonorchis)
- A: Scolex
- B: Hooks
- C: Suckers
- D: Gonopore
- E: Ovary
- F: Uterus
- G: Gonopore
What is a proglottid?
An independent reproductive unit of a tapeworm.
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