Some People Wish That We Lived in a Recollapsing Universe

question 55

Multiple Choice

Some people wish that we lived in a recollapsing universe that would eventually stop expanding and start contracting. For this to be the case, which of the following would have to be true (based on current understanding) ?

• A)Dark energy exists but dark matter does not.
• B)Dark energy is the dominant form of energy in the cosmos.
• C)Neither dark energy nor dark matter really exist.
• D)Dark energy does not exist and there is much more dark matter than we are aware of to date.

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Definitions:

Homologous Hox Genes

Genes found in the genomes of many organisms that are responsible for determining the basic structure and orientation of an organism's body plan.

Dorsal-Ventral Patterning

The process by which cells during development become organized and specialized across the back (dorsal) to front (ventral) axis of an organism, critical for proper anatomical formation.

Microbes

Microscopic organisms, including bacteria, viruses, fungi, and protozoa, that can have a vast range of functions and effects on their environments.