The Universe Is Said to Be Closed If

question 11

Multiple Choice

The universe is said to be closed if
I. gravity is strong enough to stop the expansion in a finite time.
II. the density of the universe is less than the critical density.
III. the universe is finite.

• A) I II
• B) I,III
• C) II III
• D) I, I, III
• E) none of the above

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Definitions:

α-Aminoacid

A type of amino acid in which the amino group is attached to the carbon atom immediately next to the carboxyl group, forming the backbone of proteins.

Conjugated Protein

A protein that is combined with a non-protein molecule in its structure, which can affect its function or stability.

Nonprotein

Relating to molecules or substances within organisms that are not proteins, including types like lipids, carbohydrates, and nucleic acids.

End Product

The final compound or molecule that results from the completion of a chemical or metabolic pathway.