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What kind of organisms likely perished due to the increase of oxygen in the atmosphere three billion years ago?
Q13: Which is the largest division of the
Q21: An example of homologous structures is the
Q29: Provide three diseases caused by protozoa. Include
Q37: Evolution is genetic change in _ that
Q39: In nonrandom mating, each individual in a
Q42: A genetic counselor will know that the
Q47: What are the small circles of DNA
Q52: Which theory states that eukaryotic organelles originated
Q64: Neanderthals appeared how many years ago?<br>A) ˜800,000<br>B)
Q132: Why is there very little physical evidence