Biological Evolution
The change in characteristics of living things
over time
How do organisms evolve?
Adaptation
The adjustment or changes
in behavior, physiology, and
structure of an organism
to become more suited to an
environment
How do animals adapt?
Mutations
Random changes in DNA, usually
during conception, that alter
an organism’s features or
behavior that can end up
helping or hurting an animal’s
ability to survive.
Natural Selection
Organisms that are better
adapted (fit) to their
environment survive to
reproduce and pass on their
DNA.
Artificial Selection
Organisms that are
desirable to humans are
kept alive despite their
fit to the environment