| | [No title] (Site not responding. Last check: 2007-10-29) |
 | | Class Asteroidea, seastars major intertidal predators use tube feet to pull _________________________________ apart (example mussels) some evert their stomach to feed Arms rigid and variable in number 3. |
| | Class Ophuiroidea, brittle stars they have greater flexibility in their arms than seastars Brittle stars can see all around On the top of _____________________________________________, are calcite domes about one-twentieth of a millimetre (50 µm) across that can focus light (lens). |
| | Together the lenses form a kind of compound eye that covers the animal's upper surface Although brainless, the brittlestar has a __________________________________. |
| www.bio.georgiasouthern.edu /Bio-home/George-Sophie/Boolecture7.doc (406 words) |
