Q: The point in the titration at which an indicator changes color is called what? Choices: - zeta point - tipping point - chromatic point - end point A:
end point
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Q: What biochemicals mediate changes in target cells by binding to specific receptors? Choices: - amino acids - acids - enzymes - hormones A:
hormones
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Q: What chemical element helps forms strong bones and teeth in humans? Choices: - iron - potassium - magnesium - calcium A:
calcium
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Q: What are organisms that eat just one type of food? Choices: - gluttons - hedonists - devotees - specialists A:
specialists
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