1. Platyhelminthes: Fat Worms
Soft, unsegmented, flattened worms with internal organ systems and tissues
Simplest animal to have three embryonic layers, bilateral symmetry, and cephalization
Platyhelminthes: Fat Worms
By Mikinley, Maddie, Merritt

2. Bilateral
Symmetry
Bilateral

3. Detritivore: animal which feeds off of dead organic materials
Debris and tissues of dead or almost dead animals
Feed by extracting bodily juices from prey using scolex mouth that can latch on to food
Feeding
Detritivore: animal which feeds off of dead organic materials

4. Diffusion
Circulation

5. Food goes through the mouth and is digested using its pharynx in a Gastrovascular Cavity
Excretion
Flame Cells

6. Response Complex structures External environment
Does Not have a complex nervous system
CNS runs between two nerve cords on both of its sides
Response

7. Movement Those that live on land use muscle cells to move body
Those that live in water use cilia to swim
Muscle Cells and Cilia

8. Reproduction Reproduce both sexually and asaexually
Both the male and female reproductive organs can be found in a single flatworm (Hermaphrodite)
These organs are stored in the proglottid
Reproduction

9. Respiration Diffusion No lungs or circulatory system
Cells close to the surface of the skin
Respiration

10. Name of classes and example
Trematoda
Cestoda
Planarians
Monogenea
Name of classes and example
4 major classes