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MARINE WORMS. Parasite Project Power point presentation Requirements: – Title slide (parasite and group member names) – Disease information (multiple.

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Presentation on theme: "MARINE WORMS. Parasite Project Power point presentation Requirements: – Title slide (parasite and group member names) – Disease information (multiple."— Presentation transcript:

1 MARINE WORMS

2 Parasite Project Power point presentation Requirements: – Title slide (parasite and group member names) – Disease information (multiple slides) Symptoms, what they do to the body, cures - life cycle -reproduction -organism structures/characteristics -works cited

3 Phylum Nemertea – ribbon worms

4 Ribbon worm video AZ4FYJCI AZ4FYJCI

5 Phylum Nemotoda - roundworms

6 Nematoda- roundworms Anisakis Parasite in dolphins and seals Larvae live in flesh of fish Ascaris Live in intestine of pigs, horses and humans Can produce 200,000 eggs per day

7 Ascaris life cycle

8 Roundworm video tXc tXc 1Q&feature=fvwp&NR=1 1Q&feature=fvwp&NR=1

9 CDC hookworm

10 Phylum Chaetognatha – arrow worms

11 Bristle worms

12 Arrow worm video HR-o HR-o

13 Phylum Pogonophora – deep-sea tube worms

14 Phylum Sipunculida – peanut worms

15 Peanut worm video PwE PwE

16 Phylum Platyhelminthes – flatworms Includes tapeworms, freshwater planaria, parasitic flukes Some parasites, many free-living predators and scavengers Can cause swimmer’s itch in people

17 Phylum Platyhelminthes – flatworms tapeworm planaria parasitic fluke

18 Phylum Platyhelminthes – flatworms Flattened Lack segmentation Bilateral symmetry – simplest organisms to have it Acoelomate – no body cavity

19 Phylum Platyhelminthes – flatworms Mouth and anus are same spot

20 Phylum Platyhelminthes - flatworms Central nervous system (simplest organisms to posess) – bunch of nerve cells (ganglion) and two nerve cords Cephalization Light sensitive eyespots

21 Phylum Platyhelminthes – flatworms Beginning of organ development No true respiratory, excretory system – diffusion through surface Sexual (and asexual) reproduction - hermaphrodites

22 Phylum Platyhelminthes – flatworms

23 3 classes of Platyhelminthes Turbellaria- ex. planaria Trematoda ex. flukes Cestoda- tapeworms

24 Fluke life cycle

25 Fluke slapping In whales

26 Platyhelminthes video

27 Human Tapeworm video dEMk dEMk Whipworm: _e0g _e0g

28 Phylum Annelida – segmented worms Includes earthworm, leeches, marine polychaetes (bristle worms) Body divided into ring-like segments Thousands of species

29 Phylum Annelida – segmented worms

30 Phylum Annelida - Polychaetes Most common types of marine annelids Have external, paddle-shaped structures (parapodia) with chaetae or bristles – external gills or appendages

31 Phylum Annelida – segmented worms Coelom – fluid-filled body space – between digestive tube and body wall

32 Phylum Annelida – segmented worms Hydrostatic skeleton – uses fluid in coelom – helps animal move One-way digestive tube - mouth and anus Bilateral symmetry

33 Phylum Annelida – segmented worms More developed organ systems: – Digestive system – Nervous system – Circulatory system With hemoglobin to carry oxygen Closed – blood in veins, arteries and capillaries

34 Phylum Annelida – segmented worms

35 Many lifestyles: - burrow - swim - sessile - live in tubes

36 Phylum Annelida – segmented worms feeding strategies: Parasites - attach to other organisms and feed through suckers

37 Phylum Annelida – segmented worms feeding strategies: Suspension feeders – trap particles floating in water feather duster worm Christmas tree worms

38 Christmas Tree Worms Polychaetes

39 Octonauts Christmas Tree Worms

40 Phylum Annelida – segmented worms feeding strategies: Deposit feeders – eat particles that have fallen to sea floor

41 Phylum Annelida – segmented worms feeding strategies: Predators – use “teeth” to grab prey

42 Phylum Annelida – segmented worms Nereis sp. – sandworm, clamworm – used for bait

43 Annelida video

44 Types of Marine Worms Phylum *Platyhelminthes – flatworms Phylum Nemertea – ribbon worms Phylum Nematoda – roundworms Phylum Chaetognatha – arrow worms Phylum Pogonophora – deep-sea tube worms Phylum Sipunculida – peanut worms Phylum *Annelida - segmented worms


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