Problem 3: Elemental compositions
The elemental composition of the universe, Earth's crust, and the human body
differ sharply. What factors might contribute to these differences?
||In addition to being available, elements must also be suitable or have
properties that are compatible with living processes.ago when life began.
Comparing the availability of elements on earth
with the relative composition of living organisms shows that availability is not enough. Elements
must also be suitable.
The Biology Project
Department of Biochemistry and Molecular Biophysics
The University of Arizona
Revised: January 28, 2003
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