How Might the Inward Migration of a Jovian-Like Planet in an Extrasolar

question 44

Multiple Choice

How might the inward migration of a Jovian-like planet in an extrasolar planetary system alter the probability of life appearing on inner terrestrial planets?

• A) it might improve chances slightly because some of the terrestrial planets may become moons of the Jovian planet
• B) it might greatly decrease the chance because the orbits of the inner, terrestrial-like planets would be disrupted
• C) it would make no difference at all
• D) it might improve chances because it would protect inner, terrestrial-like planets from impacts

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Definitions:

Placid

Describes a calm, peaceful, or tranquil state or demeanor.

New York Longitudinal Study

A research project that began in the 1950s tracking the temperamental characteristics of infants and how these traits relate to personality development.

Temperamental Category

A classification in psychology that describes inherent personality traits and behavior tendencies that are observable in infancy and assumed to be biologically based.

Mixed Temperament

A combination of multiple temperament traits in an individual, showing behavioral characteristics that are not dominated by a single temperament type.