Which of the Following Statements Is True in Both the Steady-State

question 60

Multiple Choice

Which of the following statements is true in both the steady-state and Big Bang models of cosmology?

• A) The cosmic microwave background was only generated at a particular time period in the past.
• B) The curvature of the Universe evolves over time as matter spreads out due to expansion.
• C) The Universe is homogeneous and isotropic.
• D) The density of galaxies never changes.

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Definitions:

Binding Specificity

The tendency of molecules such as enzymes or antibodies to selectively bind with specific substrates or antigens.

Synapse

A junction between two nerve cells, where impulses pass by diffusion of a neurotransmitter.

Acetylcholine

A neurotransmitter important for learning, memory, and muscle movement.

Enzyme

A biological molecule that acts as a catalyst, speeding up chemical reactions in the body without being consumed or altered in the process.