Mollusca         The mollusksOne of the most diverse animal             groups
BilateralCoelom-fluid-filled body cavity; the spacewhere the major organs are located
Radula - a tongue with plates or “teeth” on it;used to scrape food into the mouth
Mouth and Anus; called a “through gut”Complete stomach and digestive system
No skeleton; cavity gives shape; shell protectsLive everywhere!“Foot” for moving/burrowingSquid use jet propulsion (tentac...
Name means “soft bodied”There are 3 types:     Bivalves     Gastropods     Cephalopods
Have a nervous system    Ganglia    Nerve cordsHave an “open circulatory system”    Blood is pumped    to the spaces and  ...
Many are used for food by man
AnnelidaThe segmented worms
BilateralTissuesOrgans; organ systems
True body cavityTrue coelom
Mouth and anus; throughgutEat a wide range of materialFertilize soilLeeches have suckers andfeed on blood
Reproduce sexuallyAre found nearly everywhere
Complex nervous systemNerve cords AND a brain!!!!!!!!!
Closed circulatory system!!!     Blood is pumped through the body through a     complete system of tubes
Creep along using muscles
Nobody likes me, everybody hates meI’m gonna eat some worm (er er)sBig fat juicy ones, little tiny squirmy onesOh see how ...
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Molluska & annelida notes

  1. 1. Mollusca The mollusksOne of the most diverse animal groups
  2. 2. BilateralCoelom-fluid-filled body cavity; the spacewhere the major organs are located
  3. 3. Radula - a tongue with plates or “teeth” on it;used to scrape food into the mouth
  4. 4. Mouth and Anus; called a “through gut”Complete stomach and digestive system
  5. 5. No skeleton; cavity gives shape; shell protectsLive everywhere!“Foot” for moving/burrowingSquid use jet propulsion (tentacles); VERY fast
  6. 6. Name means “soft bodied”There are 3 types: Bivalves Gastropods Cephalopods
  7. 7. Have a nervous system Ganglia Nerve cordsHave an “open circulatory system” Blood is pumped to the spaces and diffuses through the cells
  8. 8. Many are used for food by man
  9. 9. AnnelidaThe segmented worms
  10. 10. BilateralTissuesOrgans; organ systems
  11. 11. True body cavityTrue coelom
  12. 12. Mouth and anus; throughgutEat a wide range of materialFertilize soilLeeches have suckers andfeed on blood
  13. 13. Reproduce sexuallyAre found nearly everywhere
  14. 14. Complex nervous systemNerve cords AND a brain!!!!!!!!!
  15. 15. Closed circulatory system!!! Blood is pumped through the body through a complete system of tubes
  16. 16. Creep along using muscles
  17. 17. Nobody likes me, everybody hates meI’m gonna eat some worm (er er)sBig fat juicy ones, little tiny squirmy onesOh see how they do squirm (irm irm)First you bite the heads off,and then you suck the guts out,and then you throw the skins away(a a)Nobody knows how I eat wormstwenty-four hours a day (a a).

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