1 / 3

Phylum Platyhelminthes

Phylum Platyhelminthes. 1. 20,000 species -most parasitic; only 20 species are free-living. I Characteristics 1. Bilateral symmetry 2. Triploblastic 3. Flattened dorsoventrally * 4. Excretory system of flame cells{protonephridia}. Phylum Platyhelminthes contd.

laith-bates
Download Presentation

Phylum Platyhelminthes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Phylum Platyhelminthes • 1. 20,000 species -most parasitic; only 20 species are free-living. • I Characteristics • 1. Bilateral symmetry • 2. Triploblastic • 3. Flattened dorsoventrally * • 4. Excretory system of flame cells{protonephridia}

  2. Phylum Platyhelminthes contd. • 5. Many parasitic forms • 6. Most species hermaphroditic • 7. Acoelomate • 8. Animals with definite organs • 9. Cephalization • II CLASSIFICATION • Class- Turbellaria =(free living)

More Related