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The number of neutrons in the nucleus of an atom gives it a unique chemical nature.
Q6: The amniotic egg first appeared in which
Q13: African black-bellied seedcracker finches have beaks that
Q15: Diminished rewards of photosynthesis in winter along
Q21: Cnidarians such as jellyfish have muscle and
Q34: The typical "jellyfish" demonstrates which stage of
Q46: _ characters are continuously variable.
Q53: If you are studying the physical forms
Q67: Which would be a fact supporting the
Q69: The bacterium Yersinia pestis
Q69: Explains the attraction of water molecules for