Welcome, Upcoming Scientists! The key character is most important than the general character.

1. Key Characteristics
of
Invertebrates Major Phyla

2. Welcome Upcoming Scientists!
• Welcome to Invertebrate.
• Major Phyla:
o Key Feathers.

3. Phyla
Major Minor

4. Invertebrate Major Phyla
1) Protozoa
2) Porifera
3) Coelenterata
4) Platyhelminthes
5) Aschelminthes
6) Annelida
7) Arthropoda
8) Mollusca
9) Echinodermata

5. Protozoa
• Unicellular

6. Porifera
• 1st multicellular

7. Coelenterata
• Aquatic
• Nematocysts

8. Platyhelminthes
• Flatworms

9. Aschelminthes
• Parasitic
• free living

10. Annelida
• Segmented (metamerism)

11. Arthropoda
Jointed appendage

12. Mollusca
 Soft
 Unsegmented

13. Echinodermata
 Marine
 Endoskeleton

14. Thank You
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