Science Notebook: Scientific Observations
Science News, November 22, 2008
In a section excerpted from Smithsonian Ocean, Deborah Cramer observes how carbon—one of the building blocks of life—links us to the planet's past:
"Carbon is the foundation of life. It exists in every living organism, in every cell. While some is stilled, preserved in fossils over long stretches of time, most is continually recycled.... Humans are mostly water and, after that, carbon—carbon that has been passed down through the ages, from the flesh of a fish, the ear of an elephant, the leaves of a plant. Somewhere in each of us is a cell whose carbon elements may have nourished the planet's nascent life."
To check out the rest of the issue, click here.
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