A Star That Is Discovered to Be a Binary System

question 10

Multiple Choice

A star that is discovered to be a binary system on the basis of the variations in its brightness is called a(n)

• A)Spectroscopic binary
• B)Astrometric binary
• C)Visual binary
• D)Eclipsing binary

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Definitions:

Myosin

A type of protein in muscle fibers that interacts with actin to convert chemical energy into mechanical energy, resulting in muscle contraction.

Osteoporosis

A bone disease characterized by decreased density and quality of bone, leading to weakness and increased risk of fractures.

Rheumatoid Arthritis

A chronic autoimmune disorder that primarily affects joints, leading to inflammation, pain, and eventually joint damage.

Autoimmune Disease

Disease that results when the immune system mistakenly attacks the body’s own tissues.