A Key Difference Between the Protoplanets That Formed in the Outer

question 38

Multiple Choice

A key difference between the protoplanets that formed in the outer solar system and those that formed in the inner solar system was that

• A) those in the inner solar system were much larger than those in the outer solar system
• B) those in the outer solar system included far more metal and rock, and thus the outer planets could be denser
• C) those in the outer solar system were in a place where ice, not just rock, condensed and thus could grow larger
• D) those in the outer solar system did not have enough planetesimals nearby
• E) you can't fool me, there were no differences between the inner and outer protoplanets; only the planets that finally formed are different.
• Section 14.3: Comparison with Other Planetary Systems

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Definitions:

Thermic Effect

The increase in metabolic rate after eating, due to the energy required for digestion, absorption, and distribution of nutrients.

Food

Nutritious substances that organisms eat or absorb in order to maintain life and growth.

Basal Metabolic Rate

The speed at which the body consumes energy when in a resting state to uphold essential operations like breathing and maintaining body heat.

Vasoconstriction

The narrowing of blood vessels, which increases blood pressure and reduces blood flow to certain areas.