1. Kingdom Animalia Invertebrates (Simple Animals) Mr. Skirbst Life Science Topic 16

2. Kingdom Animalia

3. Animals – multicellular heterotrophs whose cells lack cell walls

4. Kingdom Animalia Animals – multicellular heterotrophs whose cells lack cell walls 2 Major Divisions:

5. Kingdom Animalia Animals – multicellular heterotrophs whose cells lack cell walls 2 Major Divisions: 1- Invertebrates (no backbone)

6. Kingdom Animalia Animals – multicellular heterotrophs whose cells lack cell walls 2 Major Divisions: 1- Invertebrates (no backbone) 2- Vertebrates (backbone)

7. Invertebrates

8. Phylum Porifera

9. Invertebrates Phylum Porifera - “pore-bearers” (have many holes) - simplest invertebrates

10. Sponges - Have many pores

11. Sponges -Have many pores -Show little movement

12. Sponges -Have many pores -Show little movement -Reproduce sexually & asexually

13. Sponges -Have many pores -Show little movement -Reproduce sexually & asexually -Cells can “reorganize”

14. Sponges -Typical Sponge:

15. Phylum Cnidaria

16. From the Greek word:“to sting”

17. Phylum Cnidaria From the Greek word:“to sting” -Have nematocysts (stinging structure)

18. Phylum Cnidaria From the Greek word:“to sting” -Have nematocysts (stinging structure) -Have central cavity with one opening called a “mouth”

19. Phylum Cnidaria From the Greek word:“to sting” -Have nematocysts (stinging structure) -Have central cavity with one opening called a “mouth” -Have specialized tissue

20. Phylum Cnidaria 2 Body Forms:

21. Phylum Cnidaria 2 Body Forms: 1.Polyp – vase shaped (ex. hydra, coral, anemone)

23. Phylum Cnidaria 2 Body Forms: 1.Polyp – vase shaped (ex. hydra, coral, anemone) 2.Medusa – bowl-shaped (ex. jellyfish)

25. Other Invertebrates Worms Mollusks Arachnids Insects Echinoderms Etc…….