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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (63023)	11/19/2014 8:14:02 PM
From: TigerPaw	Read Replies (1) \| Respond to of 69300

I don't reallly know who Lynn Margulis is, but he or she doesn't understand how life on this planet works. There isn't just one step. In simple terms you have to have a next generation which varies from the parents just a bit. Any "creation" of a new trait occurs in the production of the new generation. Now all of the offspring die, it's just that some die easier or sooner than others. So, new traits are "created" with a new generation and most of those new traits are pruned off faster than the tried-and-true traits. However, if a new trait has some advantage it will often persist, it will often persist anyway if it is a time of expanding population. So the two steps are: 1 - the organism is born, 2 - the organism dies. If it so happens that the organism has offspring between step 1 and step 2 then it's traits will be passed on to that generation whether those traits came about through sexual combinations or mutations. If there is no generation between the steps then that trait is not passed on. Lynn Margulis seems to try and lump the two steps into one and it just isn't accurate.