Name:
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EVOLUTION vs NATURAL SELECTION: COMPARE AND CONTRAST
Evolution
-gradual change in allele frequency/inherited
traits in a population over many generations
-can be gradual or punctuated
-does not imply there is a best trait to have
for an environment
-over time, traits can disappear and
reappear, and they are not "good" or "bad"
-explanatory theory for biodiversity on Earth
Both
-help try
to
explain
how
populati
on
change
over
time
-rely on
examina
tion of
various
populati
on and
compari
ng them
with
classifica
tion
Natural Selection
-mechanism where best-adapted members
of population have best chance of survival
-survival of the fittest
-natural envrionment selects for organisms
with better fitness
-over time, all of population has the best
traits
-mechanism of evolution described by
Charles Darwin