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Some scientists believe that RNA was the first information storage molecule because ____.
Q8: Darwin recognized that _ had generated the
Q30: The earliest photosynthesizers likely used _ as
Q34: The presence of branched membrane lipids with
Q38: The scientific name of a polar bear
Q41: The polymerase chain reaction (PCR) is a
Q54: In the 1930s and 1940s, a theory
Q57: The final step in the development of
Q63: Today, Australia, Antarctica, and South America represent
Q64: Clinal variation usually results from _ between
Q83: Brown algae lack true roots but have