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Sarah performs an experiment to determine the effect of nitrogen on plants. she studies the effect of nitrogen on the growth of the root hair, height of the plants, and nodule formation. which factor is an independent variable? a) amount of nitrogen b) growth of root hair c) nodule formation d) height of the plants
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Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall
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Football players often sustain lateral blows to the extended knee. which of the ligaments is (are) damaged as a result? a. suprapatellar b. oblique popliteal and extracapsular ligament c. medial collateral, medial meniscus, and anterior cruciate d. arcuate popliteal and the posterior cruciate
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What are some characteristics of a free enterprise economy?
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The distribution of related animals and plants across the world
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Sarah performs an experiment to determine the effect of nitrogen on plants. she studies the effect o...
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