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Study Guide – Evolution
1) Define evolution.
2) In nature there is a Struggle for existence. What does this mean?
3) What is fitness and what is it the result of?
4) Define adaptation.
5) There are two types of adaptations, physical and behavioral. Give an example of each.
a.
b.
6) What mechanism for evolution did Darwin propose?
7) What is natural selection?
8) Natural selection is the same as
9) What is descent with modification?
10) What is a Species?
11) What makes up a population?
12) List the six types of evidence we have for evolution and explain each.
a.
b.
c.
d.
e.
f.
13) How are the vestigial organs in a whale (pelvis and femur) evidence for evolution?
14) What is the Gene Pool of a population?
15)
is any change in the frequency of alleles in a population.
16) What are the two main sources of genetic variation?
a.
b.
17) What are two types of gene shuffling?
a.
.
b.
18) Natural selection acts on
Hint: genotypes or phenotypes?
19) Examine the graphs  Name the type of
selection and describe why the bell shaped
curve is changed.
Graph A:
not
.
Graph B:
Graph C:
20) Genetic Drift – usually happens to (big/small) populations and is
.
21) What are two ways genetic drift happens?
a.
b.
22) For a species to evolve into two species, their
23) When are two species considered reproductively isolated?
must become separated.
24) Describe the three ways a population can become reproductively isolated.
a.
b.
c.
25) How are Darwin’s finches an example of speciation?
26) Which type of characteristics can be passed on to future generations: inherited characteristics, like
having camouflage skin, or acquired characteristics, like wearing camouflage clothing?