Concept explainers
Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.
Which of the following is not considered a key piece of evidence supporting a common ancestor for all life on Earth? (a) the fact that all life on Earth is carbon-based; (b) the fact that all life on Earth uses the molecule ATP to store and release energy; (c) the fact that all life on Earth builds proteins from the same set of left-handed amino acids.
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Life in the Universe, Books a la Carte Plus Mastering Astronomy with Pearson eText -- Access Card Package (4th Edition)
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