 |
|
| ||||||||||||||||||||||||||
|
|
| ||||||||||||||||||||||||||
|
|
|
|
|
| ||||||||
An endoskeleton is an internal support structure of an animal. Three phyla of animals possess endoskeletons of various types: Chordata, Echinodermata, and Porifera.
|
||||
| View Live Article | This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License | |
||
