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contains the DNA and controls all of the cell's activities
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The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .