As a Solar Mass Protostar Moves on to the Main

question 2

Multiple Choice

As a solar mass protostar moves on to the main sequence,

• A) its surface temperature and luminosity increase.
• B) its surface temperature increases and its luminosity decreases.
• C) its surface temperature and luminosity decrease.
• D) its surface temperature decreases and its luminosity increases.
• E) its surface temperature and luminosity remain the same.

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Definitions:

Dopamine

Dopamine is a neurotransmitter in the brain that plays a major role in reward-motivated behavior, and it is involved in various functions such as movement, motivation, and the reinforcement of rewarding stimuli.

Cognitive Functions

Mental processes that include thinking, perceiving, remembering, reasoning, and problem-solving.

Working Memory

In many models of memory, a cognitively complex form of short-term memory; it involves active mental processes that control retrieval of information from long-term memory and interpret that information appropriately for a given task.

Dissociative Amnesia

A psychological condition characterized by memory loss that is too extensive to be explained by ordinary forgetfulness, often related to trauma or stress.