Bio 2.2 Lab Exam 2: Platyhelmenthes

What is parenchyma?

Solid connective tissue that encases the organs of flat worms.
What are the three classes of platyhelminthes?
- Trematoda
- Cestoda
- Turbellaria
Are the class trematoda free-living or parasitic?

Parasitic
Are the class cestoda free-living or parasitic?

Parasitic
Are the class turbellaria free-living or parasitic?

Free-living
What class are these animals in?

Turbellaria
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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Bio 2.2 Lab Exam 2: Platyhelmenthes

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Lab Exam 2

Updated

2013-02-25T03:20:30Z

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