Suppose a biologist wants to investigate the effect of a hormone on egg production in chickens. one group of chickens will receive no hormones treatment. other groups of chickens will receive different amounts of the hormone. for all groups, all other conditions, such a kind and amount of food, feeding time, amount of water, and temperature will be identical.
control group:
experimental variable:
experimental group:
list three control variables:
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Suppose a biologist wants to investigate the effect of a hormone on egg production in chickens. one...
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