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When Testing a New Drug,researchers Control for a Placebo Effect

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When testing a new drug,researchers control for a placebo effect by using


Definitions:

Source Region

Geographic areas where air masses form, acquiring specific temperature and humidity characteristics.

Phloem Transport

The movement of sugars and other metabolic products downwards from the leaves through the phloem.

Root

The part of a plant that typically lies below the surface of the soil, anchoring the plant and absorbing water and nutrients from the soil.

Leaf

The green, photosynthetic organ of a plant that is typically flat and thin, responsible for absorbing sunlight to synthesize nutrients.

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