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science
| Question | Answer |
|---|---|
| Mantle | covers the body organs which are located in the visceral mass |
| Open circulatory system | he heart moves blood out into the open spaces around the body organs |
| Closed circulatory system | Blood containing food and oxygen moves through the body in a series of closed vessels |
| Radula | a tongue-like organ with rows of teeth used to obtain food |
| Gastropod | the largest group of Mollusks usually having one shell (univalve) or no shell |
| Bivalve | Group of mollusks with a hinged, two part shell |
| Cephalopod | Means “head foot”, has a well-developed head, nervous system and all are predators |
| Polyp | cnidarian body type that is vase-shaped and sessile |
| Medusa | cnidarian body type that is bell-shaped and free swimming |