Examlex
During an experimental study,a control group is maintained under a standard set of conditions with no change in the independent variable.The ________ group is maintained under the same standard set of conditions as the control group,but the independent variable is adjusted.
Rugae
Folds or wrinkles found in the stomach lining that allow for expansion as the stomach fills.
Stomach
A muscular organ in the gastrointestinal tract of humans and many animals, responsible for digesting food by secreting acid and enzymes.
Small Intestine
A part of the gastrointestinal tract between the stomach and large intestine that is responsible for most of the digestion and absorption of nutrients.
Esophagus
The muscular tube that conducts food and liquids from the throat to the stomach.
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