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DrHugo Designs an Experiment to Test the Effectiveness of a New

question 52

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Dr.Hugo designs an experiment to test the effectiveness of a new antidepressant.Half of the participants will receive the drug and half will receive a sugar pill,but neither the participants nor the researchers who administer the drug will know who is receiving the drug and who is receiving the sugar pill.What has Dr.Hugo designed


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Soil Nutrients

Essential elements or compounds in the soil that support the growth and development of plants.

Rain Forest

Dense forests typically found in tropical regions, with high levels of biodiversity and rainfall.

Primary Limiting Factor

An environmental condition that most significantly restricts the growth, abundance, or distribution of an organism or a population.

Temperate Grasslands

Expansive areas of grassy fields found in regions with moderate temperatures throughout the year, often used for grazing and agriculture.

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