A Chemical Is Called A(n) ____ When It Flows Through

question 179

Multiple Choice

A chemical is called a(n) ____ when it flows through the blood to targets throughout the body.

• A) hormone
• B) neurotransmitter
• C) neuromodulator
• D) endocrine

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Definitions:

Angles

A figure formed by two rays, called the sides of the angle, sharing a common endpoint, known as the vertex of the angle.

Lines

Straight or curved one-dimensional marks without any width or thickness, used for various purposes in art, geometry, and diagrams.

Ganglion Cells

Neurons located in the retina that receive visual information from photoreceptors and transmit it to the brain via the optic nerve.

Rods

The light-sensitive receptor cells in the retina that look like slender cylinders and allow the eye to respond to as few as five photons of light.