That Quasars Were at Cosmological Distances Yet Appeared Like Ordinary

question 7

Multiple Choice

That quasars were at cosmological distances yet appeared like ordinary faint stars meant:

• A)they were the brightest stars ever observed.
• B)they must be very large.
• C)they must contain many O and B type stars.
• D)they must be producing such large quantities of energy than even fusion could not explaintheir output.
• E)they must be very small, but bright due to gravitational lensing.

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Definitions:

Metabolic Reactions

are the chemical processes occurring within a living organism to maintain life, involving the conversion of energy and materials within cells.

Anabolic Reactions

Metabolic pathways that construct molecules from smaller units, requiring energy input, such as the synthesis of proteins from amino acids.

Catabolic Reactions

Metabolic processes that break down larger molecules into smaller units, often releasing energy in the process.

Daily Values

Dietary reference values useful for planning a healthy diet. The Daily Values are taken from the Reference Daily Intakes (RDIs) and the Daily Reference Values.