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The diverse array of photosynthetic plants and microbes is the result of different sources of CO2, and has little to do with environmental conditions.
Q19: In some large groups of plants, including
Q24: Traits that are shared by more than
Q26: Consider the following hypothetical hominin lineage: <i>Homo
Q41: Which of the following is the MOST
Q78: Charles Keeling's work demonstrated that, over the
Q86: Recall that during the Paleozoic Era, atmospheric
Q95: Speciation requires that two populations become _
Q98: Which of the following is a hypothesis
Q112: Which of the following statements MOST accurately
Q143: Mutations in skin cells that result in