1. PHYLUM ANNELIDA SEGMENTED WORMS

2. Don’t try this at home!

3. many bristles SEGMENTED BODY MANY WELL DEVELOPED SYSTEMS BILATERAL SYMMETRY CHARACTERISTICS:

4. RAPTORIAL FEEDERS: ex: CLAMWORM & BLOODWORM Blood worms have 4 jaws RAPTORIAL FEEDERS : HAVE HOOK-LIKE JAWS HELD INSIDE THE BODY WHICH STRIKE OUT TO GRAB PREY. FOOD IS THEN PULLED BACK INSIDE OF THE BODY & DIGESTED.

5. CLAM WORM - RAPTORIAL FEEDER SEPTA walls separate segments PARAPODIA act as gills (absorb oxygen) & used to crawl & dig TENTACLES sense of touch, taste/smell PHARYNX pushed out to feed JAWS grasp prey

6. PARAPODIA

7. CLAMWORM

8. BLOODWORM

9. BRISTLE WORM

10. FIRE WORM – immature

11. FIRE WORM – mature

12. SUSPENSION FEEDERS FILTERFEEDERS FILTER FEEDERS FOOD IS TRAPPED BY FEATHERY TENTACLES & BROUGHT TO THE MOUTH LIVE IN TUBES THEY CREATE (SAND, CALCIUM) EXAMPLES: FAN WORM FEATHER DUSTER WORM

13. SUSPENSION FEEDERS TENTACLES MOUTH TUBE

14. FEATHER DUSTER WORM

15. FEATHER DUSTER WORM TUBE

16. BEFORE AFTER

17. Yellow Feather Duster Worm

18. BANDED FEATHER DUSTERS

19. RED TUBE WORMS

20. FEATHER DUSTER

21. SLIME FEATHER DUSTER

22. CHRISTMAS TREE WORMS

23. SPIRAL TUBE WORMS

24. CALCIUM WORM TUBES

25. SPIRAL WORM SHELL

26. DEPOSIT FEEDERS USE STICKY TENTACLES TO FIND FOOD ON THE SURFACE OF SEDIMENT LIVE IN BURROWS IN SAND/MUD GILLS

27. SPAGHETTI WORM

29. CROSS-SECTION MUSCLES DORSAL BLOOD VESSEL CLOSED SYSTEM! REPRODUCTIVE CELLS INTESTINE VENTRAL NERVE CORD NEPHRIDIA SETA / CHAETES VENTRAL BLOOD VESSEL PARAPODIA SPINES

30. FUNCTIONS OF ORGANS/SYSTEMS INTESTINE – ABSORB NUTRIENTS MUSCLES – CAUSE MOVEMENT BLOOD VESSELS – CARRY BLOOD PARAPODIA – CRAWLING/DIGGING NERVE CORD – CARRIES MESSAGES TO/FROM THE BRAIN NEPHRIDIA– EXCRETE URINE SETA/SPINES – HELP MOVE INCREASE TRACTION