Like this site (Wikianswers), Wikipedia is a user driven website. But both have rules to follow.
Yes
You are allowed to post legitimate answers on Answers.com. Legitimate answers are encouraged! Answers that aren't up to snuff, however, will often be edited or removed.
no, you can't
Anyone is allowed to contribute answers, so not all the answers are accurate.
Once you post a question on Answers, you are not allowed to delete or take it down.
Personal information is not allowed on wiki answers.
If you are bored, you should go through Answers.com and see how many questions you can answer correctly. You are not allowed to copy answers from an encyclopedia, however, you are allowed to think of the answers you have gained from reading such articles and write down the answers.
How do organisms change with the seasons
no because any one can change the answers Ehem*They change the answers because of updates.
Signing your answers just simply isn't allowed. The goal of WikiAnswers isn't to take credit for answers, but to help out the community with their questions.
Sorry, but we aren't allowed to do your homework for you.
Answers that help stalkers are not allowed.