If Dark Matter Did Not Exist It Is Likely That

question 41

Multiple Choice

If dark matter did not exist it is likely that:

• A)the universe would expand forever
• B)the universe would begin contracting soon
• C)the night sky would be brighter
• D)the night sky would be darker
• E)we would be able to see the center of the universe

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Definitions:

Ecological Niches

The role and position a species occupies in its environment, including all interactions with biotic and abiotic factors.

Monophyletic Group

An ancestor in which a derived trait evolved, together with all of its descendants.

Derived Trait

A character that is present in a clade under consideration, but not in any of the clade’s ancestors.

Stabilizing Selection

A type of natural selection that favors intermediate variants by acting against extreme phenotypes, leading to a decrease in a population's genetic variance.