| A | B |
|---|
| flatworm | worms that are flat, ex tapeworms, planarians |
| regeneration | the ability of an organism to regrow lost body parts |
| parasites | organisims that grow on or live in another organism and cause harm to it |
| host | the organism that the parasite lives on or in |
| roundworm | parasites that resemble strands of spaghetti, they live on land or in water, ex. hookworm |
| segmented worm | worms that have segments, ex earthworm |
| clitellum | the band on the anterior part of the earthworm involved in sexual reproduction |
| setae | tiny bristles on the belly (ventral) side of the worm, used for movement |
| esophagus | connects the mouth to the gizzard |
| gizzard | grinds the sand that the earthworm ingests |
| intestine | digests and rids body of wastes |
| anus | opening through which wastes pass |
