The Technique Called Radiometric Dating Is Based on

question 17

Multiple Choice

The technique called radiometric dating is based on

• A)the steady, clocklike decay of certain radioactive isotopes over time.
• B)the assumption that radioactive isotopes accumulate in fossils at a constant rate.
• C)the formation of radioactive molecules in rocks after they are laid down.
• D)the use of fossils of known age to determine how fast carbon-14 decays.

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Definitions:

Lesioning

A method used in neuroscience research involving the removal or destruction of part of the brain to study the effects on behavior or function.

Dopamine-Releasing Neurons

Nerve cells in the brain responsible for releasing dopamine, a neurotransmitter involved in reward, motivation, and the regulation of movement and emotional responses.

Parkinson's Disease

A chronic and progressive neurological disorder characterized by tremors, stiffness, and slow movement, due to the loss of dopamine-producing brain cells.

Midbrain

A part of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.