A Pulsar Is A(n)

question 115

Multiple Choice

A pulsar is a(n)

• A) rapidly spinning neutron star.
• B) type of variable star, pulsating rapidly in size and brightness.
• C) very precise interstellar beacon perhaps operated by intelligent life-forms.
• D) accretion disk around a black hole, emitting light as matter is accumulated on the disk.

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Definitions:

Fat

A type of nutrient consisting of lipids, commonly found in animals and plants, used by the body for energy storage and insulation.

Endoskeleton

An internal support structure of an organism, made of bone or cartilage, common in vertebrates.

Exoskeleton

An external skeleton that supports and protects an organism's body, found in invertebrates like insects and crustaceans.

Epiphysis

The end part of a long bone, initially growing separately from the shaft but later merging to form a complete bone.