|
03-30-2008, 09:16 AM
| ||||
| ||||
| Biology -animals? Lampreys differ from hagfishes in B) having a cranium. C) having pharyngeal clefts that develop into pharyngeal slits. D) having a notochord throughout life. E) having a notochord that is surrounded by a tube of cartilage. In which extant class did jaws occur earliest? A) Cephalaspidomorphi B) Chondrichthyes C) Actinopterygii D) Dipnoi E) Placodermi Thanks!      |
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| triology so biology means two like animals second after people? | neverfakt | Biology | 0 | 03-16-2008 09:52 PM |
| biology help with animals? | candy K | Biology | 0 | 03-11-2008 09:24 PM |
| High School biology questions on animals? | Jennifer | Biology | 0 | 03-10-2008 09:50 PM |
| some biology questions...animals and fungi? | Ashana | Biology | 0 | 03-10-2008 08:43 PM |
| I love animals and I would like to be a vet but I hate biology...? | Jessica C | Biology | 0 | 02-27-2008 08:45 PM |
Linear Mode
