Circulatory+systems

Circulatory systems:

//Your team will be researching various methods of circulating materials through the body. Below are your assigned organisms along with some key body parts, processes and terms which should be included in your presentation. Divide these fairly among you plus the additional general tasks as listed here and in the descriptor://


 * Define the basic function of a circulatory system


 * Explain the difference between an open and closed system, then be sure to include which organism does which of these as each is presented


 * Explain the difference between the hearts of an amphibian, a reptile, a fish, and a mammal both functionally and structurally. Also indicate which includes single or double circulation and what those terms mean.


 * __Organisms__:** include these terms and their role in circulation; label any body parts in diagrams.

1. Insect: hemolymph

2. Jellyfish: gastrovascular cavity

3. Earthworm: ventral vs dorsal vessel; # of hearts

4. Clam: sinuses

5. Sponge: choanocytes (also known as collar cells); amebocytes; osculum

6. Starfish: water vascular system; tube feet

7. Snake: poikilotherm (coldblooded), type of heart(see above)