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Q5: Bacteria contain neither organelle-associated membranes nor a
Q17: Photosynthesis spread through eukaryotes by repeated endosymbioses
Q23: What can scientists study to gain a
Q49: Which one of the following types of
Q92: Why might asexual reproduction typically result in
Q95: If a DNA molecule is visualized as
Q121: The acquisition of traits necessary for complex
Q133: Many of the signaling pathways used for
Q146: Which of the following accounts for why
Q155: The discovery that single-celled sister groups of