Can someone tell me how you link or redirect a question to a previous answer? I'm still trying to figure all this out and would appreciate a hand. Thanks!
You can copy the link from the "share" button found under every question or answer. Then you can either paste the html link directly into your question (which will be shown as the question title) or link through a text string (sometimes a bit more readable).
Examples using the second most recent meta post (remove single space in html links to make them functional):
[See this question](http:// meta.biology.stackexchange.com/q/3228/3624)
Note that direct html links are not displayed as question titles when included in comments (the actual address is shown instead), so I prefer linking through a text string there, to clearly show what the link is leading to.