A Roche Lobe Is an Imaginary Boundary Around Each Star

question 240

Multiple Choice

A Roche lobe is an imaginary boundary around each star in a close binary system

• A) encompassing the mass gravitationally bound to that star.
• B) that marks the limit outside which planets cannot form.
• C) that marks the limit inside which planets cannot form because they would be torn apart by the star's gravity.
• D) that marks the limit of each star's gravitational pull: As long as each star is within its own Roche lobe, the stars will have no effect on each other.

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Definitions:

Operant Behaviour

A type of learning where behavior is controlled by consequences, including rewards and punishments.

Conditioning Principles

Conditioning Principles involve the processes of learning associations between environmental stimuli and behavioral responses, integral to both classical and operant conditioning.

Multifactorial

Relating to or determined by many factors or causes, especially regarding disease causation or genetic expression.

Resistance to Extinction

The persistence of learned behavior even after the original conditions that led to its acquisition have been removed.