H and O are examples of CHEMICAL SYMBOLS. All the elements of the periodic table have a symbol representing their name which is shortened down to one or two letters. This way, it is easier to write as a symbol instead of writing the whole word. These examples you have listed are symbols of the elements Hydrogen (H) and Oxygen (O). Other examples of symbols are S for sulfur, Fe for Iron, and Al for aluminum.
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- Dotz
Answer:
Minors
Explanation:
because she's under the age of 18 and it 21 in some states
Answer:
The correct answer is conservative model.
Explanation:
There are 3 hypothesized DNA replication models: semi-conservative, conservative and dispersive model (see figure). Heavy isotope of nitrogen makes diference when density gradient centrifugation experiment conducted and two diffent bands contaning different isotopes of nitrogen are observed. With one band only containing 14N means bacteria only copies one strand in one replication which supports semi conservative model.
Thirty-five percent of the trees cut down are used to make paper. That means sixty-five percent of the trees cut down are used for something other than paper. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.