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Welcome to the on-line forum for Biology 103.  This is a place for thoughts in progress, a place to leave thoughts and questions that others may find useful and find ones that you might find useful, a place for conversation.  Join in, and let's see what we can make of life together.  If you're registered for the course, be sure to sign in before posting.  Others are welcome to join in as well but posting of comments will be delayed to check for spam.  You're free to write about whatever has struck you.  If you need something to get you started though, here are the questions we started the week with

Do we need to recognize change or can we ignore it in studying biology?  Can we live with multiple perspectives or do we need to stick with one?  Can we accept random motion as a first cause or must it itself have a cause?   Are these incompatible stories amongst which we must choose or can we come up with stories that take account of the observations underlying both?

What further light does our looking at the chronology of life on the earth during the week shed on these and other questions?  What new questions does it bring to mind?