f
Fossil
S
Species
a
Adaptation
e
Evolution
S
Scientific Theory
n
Natural Selection
v
Variation
c
Comparative Anatomy
h
Homologous Structures
m
Mold
c
Cast
p
Petrified Fossil
t
Trace Fossil
p
Paleontologist
g
Gradualism
p
Punctuated Equilibria
h
Habitat
e
Extinct
c
Classification
t
Taxonomy
b
Binomial Nomenclature
g
Genus
p
Prokaryote
e
Eukaryote