Which of These Statements About the Rate of Stellar Evolution

question 121

Multiple Choice

Which of these statements about the rate of stellar evolution is true?

• A) The more massive the original star, the faster is the evolution.
• B) The chemical makeup of the original nebula is the major factor in deciding the rate of evolution, whatever the mass of the star.
• C) Star mass has no bearing on stellar evolution since all stars evolve at the same rate, controlled by nuclear fusion.
• D) The more massive the original star, the slower is the evolution since there is more material for thermonuclear burning.

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Definitions:

Agouti Gene

A gene that influences pigmentation patterns in mammals' fur by controlling the distribution of melanin.

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A species of hare native to North America, known for their large hind feet and seasonal color change from brown to white.

Natural Selection

The process through which organisms better adapted to their environment tend to survive and reproduce more than those less well adapted.

Hybridization

The process of crossing two genetically different individuals to produce offspring that may possess traits from both parents.