There are two oxygen atoms. The OH is in parentheses with the 2 after it to indicate that there are two OH molecules, each containing on atom of oxygen.
Ok this might not be the best answer but just by reading it, it may be unreliable because numbers do change over time
Assuming that you're talking about a food pyramid in the ecosystem,
the best explanation for the decrease in the amount of energy transferred to each succeeding level is that much of energy is : released as heat
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Answer:
the answer is C. There are four steps and they are, glycolysis, the preparatory reaction, the citric acid cycle and the electron-transport chain. In that exact order.
Explanation:
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Inheritance of traits by offspring follows predictable rules. Genes come in different varieties called alleles. Somatic cells contain two alleles for every gene (: hope this helps
