Three Terrestrial-Sized Planets in Orbits of a Fraction of an A.U

question 50

Multiple Choice

Three terrestrial-sized planets in orbits of a fraction of an A.U. have been found near:

• A)Cygnus X-1.
• B)a magnetar.
• C)Supernova 1987A.
• D)a millisecond pulsar.
• E)a white dwarf.

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Definitions:

Cerebellum

A part of the brain at the back of the skull in vertebrates, involved in coordinating movement and balance.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood, controlling basic emotions and drives.

Endocrine System

A network of glands in the body that produce and release hormones directly into the bloodstream to regulate body functions.

Hypothalamus

A brain region acting as a crucial center for regulating temperature, hunger, thirst, and other critical physiological processes.