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

To: Brumar89 who wrote (21086)	2/9/2012 9:51:31 PM
From: mel221	1 Recommendation Read Replies (1) \| Respond to of 69300

>> those fat molecules that are used in cell walls do make cells walls very well, but where fat molecules ultimately they come from? The theories are ranging. One that I like suggests that the earliest cell walls were clay surfaces that provided protected environments for replication and metabolism. At some point, some RNA/DNA sequence started producing fats as a waste or other kind of byproduct. The fats represent a storage of energy from the sun and had a unique set of chemical properties. One organisms waste product can become another organisms reason to exist. Very much like the process that transformed this planet's atmosphere from 0% oxygen content into today's 20% content. O2 was a waste product of the earliest, successful organisms.