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a membrane that only "lets" certain molecules in while keeping other molecules out is
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If animal agriculture was eliminated, how much grain would become available for human consumption?
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This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.
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9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)
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a membrane that only "lets" certain molecules in while keeping other molecules out is...
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