Why Do Many Researchers Consider RNA to Be the Best

question 40

Multiple Choice

Why do many researchers consider RNA to be the best candidate for the first life- form?

• A) It is simple in structure.
• B) It carries more information than any other molecule.
• C) All of its nucleotide components have been created under laboratory conditions that mimic early Earth.
• D) It is capable of self- replication and catalysis.

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Definitions:

Vasoconstriction

The narrowing of blood vessels, which increases blood pressure and decreases blood flow to certain areas.

Branch

A part of a tree that grows out from the trunk or from a bough.

Skeletal Muscle

A type of striated muscle tissue which is attached to bones and is responsible for their movement.

Smooth Muscle

Involuntary, non-striated muscle found in the walls of internal organs and blood vessels, responsible for their contraction and movement.