May 30, 2016

Homework Help: Biology

Posted by John on Thursday, June 4, 2009 at 11:31pm.

1. Mutations to DNA cause changes in organisms. Explain why this might be important to the survival of a spcies?

2. Why is it important to be protected with a lead shield when you are getting dental X rays?

3. Why can suntanning be dangerous for a skin cell?

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