Which Hypothetical Universe Will Eventually Contract, If There Were No

question 20

Multiple Choice

Which hypothetical universe will eventually contract, if there were no dark energy?

• A)the universe with 0.5 times the critical density of matter
• B)the universe with 1.0 times the critical density of matter
• C)the universe with 1.5 times the critical density of matter

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Definitions:

Extinct

The state in which a species no longer exists anywhere on Earth, often due to environmental changes, predation, or human activities.

Jawless Fish

A group of fish without jaws, such as hagfish and lampreys, representing early forms of vertebrate life.

Conodonts

Extinct, simple fishlike chordates with large eyes and tooth-like hooks; may have been early vertebrates.

Toothlike Hooks

Structures resembling teeth or hooks, often used by plants or animals for attachment or predation.