All Stars on the Main Sequence

question 62

Multiple Choice

All stars on the main sequence

• A) are at a late stage of evolution after the red-giant stage.
• B) are changing slowly in size by gravitational contraction.
• C) generate energy by hydrogen fusion in their centers.
• D) have approximately the same age to within a few million years.

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Definitions:

Subliminal Stimulation

The process of influencing individuals with signals or messages delivered below the threshold of conscious perception.

Visual Cortex

The part of the cerebral cortex responsible for processing visual information, located in the occipital lobe.

Retina

The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information.

Thalamus

A part of the brain located above the brainstem that acts as a relay center, directing sensory and motor signals to other parts of the brain.