1. By: Alex Thornton, Kris Dick, Alyssa Milligan
Platyhelminthes
By: Alex Thornton, Kris Dick, Alyssa Milligan

2. Type of symmetry Movement Bilateral
Controlled by a longitudinal, circular, and oblique layers of muscles
Some by slime trails by the beating of epidermal cilia

3. Nervous System Digestive system
Longitudinal nerve cords that are interconnected across the body by transvers braches
Two simple brains and eye spots to help sense light
Cephalized nervous system
Digestive system
Two-way
Food goes into a gut then back out after so much time has passed

4. Excretory system Circulatory system Respiratory system Flame cells
Osmosis/ diffusion
Respiratory system
Flame cell

5. Skeletal system Reproductive system None Sexually and asexually
Hermaphrodites

6. Types of Platyhelminthes
Turbellaria- Flat worms that live in tropical, moist hot environments

7. Types of Platyhelminthes
Trematoda- (Flukes) live in intense conditions

8. Types of Platyhelminthes
Cestoda- Parasitic Flat worms (Tape Worms)

9. Cephalization
Concentration of sense of organs, nervous control. At the anterior end of the body during evolution in the course of an embryos development

10. Contraction of tape worm
Animals
Raw meat

11. Platyhelminthes: Planarian Diagram

12. Tapeworms

13. Flukes

14. Work Cited
(planarian diagram)
(tapeworm1)
(tapeworm2)
(fluke1)
(fluke2)
rochozoans/img041.jpg (fluke 3)
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