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Microfossils found in northwestern Australia in 2011 appears to have used compounds based on which element for metabolism?
Q12: O-type stars in our galaxy are<br>A) very
Q15: Which is the largest moon in the
Q21: What field of science are the experiments
Q43: Bacteria are examples of<br>A) unicellular prokaryotes<br>B) unicellular
Q62: Due to its elliptical orbit, Mars is
Q66: What is a major limitation in the
Q81: One type of early protocell (pre-cells) probably
Q99: The energy associated with random atomic and
Q119: A chemoheterotroph gets is energy from<br>A) chemical
Q125: Why do we believe the Cambrian explosion