Evolution 1
Gap-fill exercise
advantageous decay DNA evolution extinct fossils selection variation
The remains of organisms which lived many years ago are called
. They are most often formed from parts of organisms that do not
. Most of the evidence for
comes from a study of the way in which organisms have changed over long periods of time.
The theory of evolution by natural
states that all members of a species show
. Some variations are
and enable the organism to survive changing conditions, wheras other organisms become
.
The newest evidence to support evolution comes from a study of
.
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