in the digstive system,what is the defenition or function of th Appendix?

Answer 1

Are we talking about the human appendix? Other animals also have an appendix.

See here for brief descriptions

http://dictionary.reference.com/browse/appendix

You might also want to look at

http://www.scientificamerican.com/article.cfm?id=does-the-appendix-serve-a

Answer 2

how do animals need enviroment