1. Complete questions on Coloring sheet for tomorrow. Complete ‘Scramble Words’ Vocabulary sheet for Wednesday. Quiz on Thursday on the vocabulary for Annelida

2. The segmented worms “annelus” - little ring I’m metameric

3. 3 classes of Annelida Class Polychaeta – mostly marine fanworms, bristle worms, tube worms

4. Feather duster worms ( Polychaetes) Filter feeder

5. Class Oligochaeta - earthworms

6. Class Hirudinea - leeches

7. General characteristics segmented body coelomate

8. Longitudinal and circular muscles Setae/ bristles used for locomotion Soft bodies – hydrostatic skeleton Bilateral symmetry Respiration: In feather duster worms – gills Earthworms – moist skin

9. Specialized structures: Ex. Earthworm Prostomium – used for sensing and digging through the soil.

10. Earthworms have a closed circulatory system: Blood flow in blood vessels – dorsal and ventral. They have 5 pumping ‘hearts’ called pseudo-hearts or aortic arches. (Color red)

11. Segments

13. Digestive system: Mouth, Pharynx, Esophagus, Crop (store food), gizzard (ground up food), intestine (digestion), anus (excretion) Color Green

15. Nephridia for excretion Clitellum – Secretes mucous ring for fertilization. Ganglia form ‘brain’. Has a ventral nerve cord. Color Blue

16. Nephridia – Helps with excretion of nitrogen containing wastes.

17. Reproduction: Example - Earthworm Sexual reproduction Hermaphrodites – Male and Female reproductive structures. Eggs produced in ovaries Worms exchange sperm: Sperm produced in testes. Seminal receptacles receive the sperm from the other worm during mating. Seminal vescicles store sperm from other worm. External fertilization in a mucous ring which becomes a cocoon. Mucous ring forms at clitellum.

18. Male Female Male

19. http://www.sciencelearn.org.nz/Science-Stories/Earthworms/Sci-Media/Video/Physical-adaptations-for-life-underground

22. Mode of nutrition: Some are filter feeders – Tube worms Some are carnivores – Nereis Earthworms feed on decaying vegetation.

23. Movement: Body muscles and a hydrostatic Skeleton. Marine annelids have parapodia Used for swimming and crawling Earthworms have bristle like Setae to help with movement.