A Group of Randomly Selected Subjects for a Study That

question 170

Multiple Choice

A group of randomly selected subjects for a study that matches the population on important characteristics such as age and sex is called __________________.

• A)volunteer bias
• B)a representative sample
• C)the experimental group
• D)the control group

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Definitions:

CNS

Central Nervous System; it comprises the brain and spinal cord, controlling most functions of the body and mind.

Cerebrospinal Fluid (CSF)

A clear, colorless body fluid found in the brain and spinal cord, playing a key role in cushioning the brain and removing waste.

Nasal Conchae

Structures that extend from the lateral walls of the nasal cavity.

Paranasal Sinuses

Air-filled spaces within skull bones that open into the nasal cavity.