Ordinary Matter Makes Up Approximately ____Percent of the Critical Density

question 6

Multiple Choice

Ordinary matter makes up approximately ____percent of the critical density of the Universe.

• A) 0.1
• B) 1
• C) 4.5
• D) 10
• E) 50

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Definitions:

Extant Turtles

Refers to turtle species that are currently existing or living, as opposed to those that have become extinct.

Metabolic Mechanisms

The biochemical processes that occur within a living organism to maintain life.

Saclike Lungs

Lungs that consist of air sacs, facilitating gas exchange in various organisms, particularly birds, allowing for efficient respiration.

Regulating Body Temperature

The process by which living organisms maintain their internal temperature within a tolerable range, despite external changes.