Answer:
Oxygen is reduced, gaining electrons and hydrogen ions. -second choice
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
C. Amino Acids (Biuret solution)
Question:why were maggots there only after the flies left
Hypotheses:the maggots are fly larva
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