Our Current Ideas on Galaxy Formation Suggest That the Visible

question 58

Multiple Choice

Our current ideas on galaxy formation suggest that the visible parts of galaxies:

• A) form first and are incorporated into dark matter halos later
• B) form only in the densest parts of dark matter halos
• C) can tell you the total size of the dark matter halo
• D) can tell you everything about the formation history of that galaxy
• E) spread out over larger distances than dark matter halos

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Definitions:

Organic Product

A chemical compound of organic origin or produced by living organisms.

Gaseous HCl

Hydrochloric acid in its gaseous form, commonly used in chemical synthesis and processing.

Propanoic Acid

An organic compound, a colorless, oily liquid with a pungent odor, used industrially in the production of esters, as a preservative, and in cosmetics.

Amino Acid

Organic molecules used as the building blocks of proteins, characterized by an amino group, a carboxyl group, and a specific side chain attached to a central carbon atom.