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Oxygen is transported by to the where it is used to break down the into water, carbon dioxide, and usable energy.
cells
heart
sugar
blood
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Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?
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What are the student's observations and inferences before he starts his investigation?
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Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.
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Oxygen is transported by to the where it is used to break down the into water, carbon dioxide, and...
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