Which of the Following Best Describes Why a White Dwarf

question 14

Multiple Choice

Which of the following best describes why a white dwarf cannot have a mass greater than the 1.4-solar-mass limit?

• A)Electron degeneracy pressure depends on the speeds of electrons,which approach the speed of light as a white dwarf's mass approaches the 1.4-solar-mass limit.
• B)White dwarfs get hotter with increasing mass,and above the 1.4-solar-mass limit they would be so hot that even their electrons would melt.
• C)White dwarfs are made only from stars that have masses less than the 1.4-solar-mass limit.
• D)The upper limit to a white dwarf's mass is something we have learned from observations,but no one knows why this limit exists.

Understand the contributions of germ layers to the formation of various organs and tissues.

Recognize the clinical significance of calculating the age of the unborn child.

Describe key events and processes in gastrulation.

Understand the biological processes that regulate hunger and satiety, including the roles of glucose, ghrelin, and leptin.

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Definitions:

Low Sexual Desire

A decrease in the normal level of sexual interest or appetite.

Body Fluids

Liquids originating from inside the bodies of living organisms that carry nutrients, oxygen, and wastes, including but not limited to blood, saliva, semen, and lymph.

Sexual Response Cycle

The sequence of physical and emotional changes that occur as a person becomes sexually aroused and participates in sexually stimulating activities.

Arousal

A physiological and psychological state of being awake or reactive to stimuli, often associated with sexual readiness but also applicable to other contexts.