| A | B |
|---|
| diploid | cell with two of each kind of chromosome |
| filter feeder | organism that filters small particles from water to get its food |
| sessile | organism permanently attached to one place |
| cnidocytes | nematocyst-containing stinging cells on a cnidarian’s tentacles |
| nematocyst | capsule whose threadlike tube contains poison and barbs and is discharged when prey touches a cnidarian |
| gastrovascular cavity | the space surrounded by an inner cell layer, where digestion takes place |
| nerve net | nervous system that conducts impulses |
| polyp | tube-shaped, sessile body form of cnidarians |
| medusa | umbrella-shaped, free swimming body form of cnidarians |
