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A researcher reports that there is no consistent relationship between grade point average and the number of hours spent studying for college students.The correlation between grade point average and the number of hours studying is an example of
Afferent Neurons
Nerve cells that carry sensory information from the body's periphery towards the central nervous system.
Efferent Neurons
Nerve cells that carry neural impulses away from the central nervous system to effectors such as muscles and glands.
Motor Neurons
Nerve cells that transmit signals from the brain and spinal cord to muscles, initiating movement.
Pineal Gland
A small, pinecone-shaped endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.
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