As We Look at Larger and Larger Scales in the Universe

question 2

Multiple Choice

As we look at larger and larger scales in the universe, we find

• A) smaller and smaller masses.
• B) a larger and larger percentage of the matter is visible.
• C) almost exclusively visible matter.
• D) a larger and larger percentage of the matter is dark.
• E) an equal amount of visible and dark matter.

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Definitions:

Fatty Acid

Long hydrocarbon chains that are a major component of lipids, which can be saturated or unsaturated, serving as important sources of energy.

Carbon Atoms

The chemical building blocks of organic molecules, characterized by their ability to form stable bonds with other elements including themselves.

Nucleic Acids

Macromolecules that store and transmit genetic information, including DNA and RNA.

Nucleotides

The basic building blocks of DNA and RNA, composed of a nitrogenous base, a sugar, and a phosphate group.