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Which of the following occurs after a natural or unnatural disturbance in an ecosystem
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What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
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Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis
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Many people try to eliminate fat from the diet what is one reason eating some fat is necessary...
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