Charles Darwin advanced the principle of

A) the double helix.
B) the Big Bang theory.
C) epigenetics.
D) natural selection.

Natural Selection

A process in biological evolution where organisms with traits better suited to their environment are more likely to survive and reproduce.

Double Helix

The structure of DNA, characterized by two strands that wind around each other like a twisted ladder, discovered by James Watson and Francis Crick.

Big Bang Theory

The prevailing cosmological model explaining the early development of the Universe, suggesting it expanded from a singularly hot and dense point about 13.8 billion years ago.