Which of the following statements best describes sunspots?
sunspots are gaseous clouds...
Which of the following statements best describes sunspots?
sunspots are gaseous clouds that sometimes shoot into space.
sunspots are located in the core of the sun.
sunspots are dark areas of intense electromagnetic activity.
sunspot appear and disappear in 24 year cycles.
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Nucleic acid certain protein cell membranes certain carbohydrates
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Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?
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