Not sure what you mean by 2 and 3, but sugars such as these use a lot of carbon and hydrogen!
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Climate change could cause animals and plants to die.
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b- when your heart rate slows down
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The gametes are haploid, having half the number of cells as compared to somatic cells. The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes
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The horizontal rows/lines on the periodic table are called periods.
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