Examlex
Answer the question.
-Which of the following describes the bias that can occur when members of a study's sample are volunteers?
Stiff
Describes an object or body part that is rigid, difficult to bend or move.
Sponge
A simple aquatic creature with a porous body, or a soft, absorbent material used for washing and cleaning.
Type II Alveolar Cell
is a cell in the alveoli of the lungs that produces surfactant to reduce surface tension and prevent lung collapse.
Surfactant
A substance that reduces surface tension, in the lungs it prevents the collapse of alveoli during exhalation.
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