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Which of the following shows the evolutionary relationships between organisms?
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The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.
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Select the correct answer. what is the observable characteristic of a person called? o a. genotypephenotypeoc. alleleo d. gene
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Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.
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Which of the following shows the evolutionary relationships between organisms?...
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