When Part of a Circle Is Shown, the Curved Line

question 8

Multiple Choice

When part of a circle is shown, the curved line is usually called a(n) ____.

• A) chord
• B) radius
• C) diameter
• D) arc

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Definitions:

Neurotransmitters

Chemical messengers in the brain and nervous system that transmit signals between neurons, influencing various functions including mood, sleep, and appetite.

Chemical Molecules

Groups of atoms bonded together, representing the smallest fundamental units of a chemical compound that can take part in a chemical reaction.

Morphine

A potent opiate analgesic derived from the opium poppy, used medically to relieve severe pain.

Heroin

Heroin is an opioid drug synthesized from morphine that is illegal and has high potential for addiction and dependence.