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Heat is the amount of heat required to change the temperature of 1 gram of a substance by 1°c, and it is related to the chemical composition of the substance.
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An animal cell (left) and a plant cell (right) are shown.which organelle, labeled x in the diagram, is found in both plant and animal cells?
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Select the word from the list that best fits the definition apparent movement of a star used to measure its distance from earth
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If a carbon atom is bonded to two hydrogen atoms and two carbon atoms what type of bond must exist b...
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