You Discover a Binary Star System in Which One Member

question 16

Multiple Choice

You discover a binary star system in which one member is a 15 solar mass main-sequence star and the other star is a 10 solar mass giant star. Why should you be surprised, at least at first?

• A) It doesn't make sense to find a giant in a binary star system.
• B) The odds of ever finding two such massive stars in the same binary system are so small as to make it inconceivable.
• C) The two stars in a binary system should both be at the same point in stellar evolution; that is, they should either both be main-sequence stars or both be giants.
• D) The two stars should be the same age, so the more massive one should have become a giant first.
• E) A star with a mass of 15 solar masses is too big to be a main-sequence star.

Acknowledge the benefits and strategies of job enrichment for organizational efficiency.

Comprehend the significance and methods of job design in enhancing work satisfaction and productivity.

Understand the concept and prevalence of contingency workers within the workforce.

Recognize the variety of alternative work arrangements and their importance in modern organizations.

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Definitions:

Brazelton Assessment

A developmental test for infants, measuring their physical and neurological responses to understand their developmental progress.

Dizygotic Twins

Twins that are born from separate eggs, fertilized by separate sperm, resulting in siblings that are genetically distinct, much like ordinary brothers or sisters.

Genes

Units of heredity made up of DNA, acting as instructions to make molecules called proteins, which play an essential role in determining the physical and functional traits of an organism.

Base Pairs

the building blocks of the DNA double helix, consisting of adenine (A) paired with thymine (T), and guanine (G) paired with cytosine (C).