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Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
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What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous
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By going through the process of cellular respiration the cell can gain molecules of atp.
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When an insect is feeding on a plant ,which types of tissue are at work to protect the plant and hel...
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