bio project platyhelminthesbiologyeleven.pptx

ppt abt platyhelminthes

1. PLATYHELMINTHES  

2. •Germinal layers- triploblastic (consists                                  of 3 layers-ectoderm                                                     -mesoderm                                                      -endoderm) •Body cavity-Acoelomate (No Coelom)          Flatworm which is an example of                      Platyhelminthes. •Mainly Aquatic  •Some of them are Endoparasites while others are free living. •Bilateral 

3. •Digestive System - Incomplete (only one opening) •Circulatory System- They do not have circulatory system •Nervous System- Developed  The flatworms are the first to develop a central nervous system with a brain. •Respiratory system- Absent 

4. Some other features- •Unsegmented  •Dorsoventrally Flattened body  •Excretion occurs by the means of flame cells •Bear hooks and suckers  

5. Liver Fluke  Taenia Solium  Planaria