Transcript Charles Darwin

Charles Darwin
Fossils
Evidence
Darwin’s
Theory
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Patterns of
Genetic
Speciation
Evolution Equilibrium
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The three types of fossils.
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What are Imprints, Casts,
and Molds?
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The ___ of fossils is
determined from their
position in the rock.
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What is relative age?
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Fossils are found most
commonly in layers of ___
rock.
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What is sedimentary?
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The amount of carbon-14 left
in a fossil after 22,920 years.
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What is 1/16?
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The amount of nitrogen-14 in
a fossil after 17,190 years.
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What is 7/8?
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Structures that are
embryologically similar.
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What are homologous
structures?
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A functionless structure that
may be homologous to useful
structures in other species.
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What is a vestigial organ?
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___ reveals the exact number
of differences between
organisms of different
species.
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What is Biochemistry?
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The finches that Darwin
collected were similar
because they all shared a
___.
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What is a common ancestor?
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The two proteins that are
most commonly used for
biochemical testing to
compare the evolution of two
organisms.
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What are Hemoglobin &
Cytochrome C?
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Darwin’s position on the
Beagle.
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What is naturalist?
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An inherited variation that
increases an organism’s
chance of survival in a
particular environment.
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What is adaptation?
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The process by which
organisms with favorable
variations survive and
reproduce at a higher rate.
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What is natural selection?
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The ability of an organism to
survive and reproduce in an
environment.
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What is fitness?
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The first systematic
presentation of evolution was
put forth by ___.
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Who is Jean LeMarck?
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The evolution of the
Galápagos finches is an
example of ___.
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What is divergent evolution?
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An evolutionary pattern in
which many species evolve
from a single ancestral
species.
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What is adaptive radiation?
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The evolution of dolphins
and sharks is an example of
___.
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What is convergent
evolution?
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The process by which two or
more species change in
response to each other.
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What is coevolution?
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An anteater develops a
longer nose in response to
ants digging deeper into the
soil. This is an example of
___.
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What is coevolution?
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The movement of genes into
or out of a population.
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What is gene flow?
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The single most significant
factor disrupting genetic
equilibrium.
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What is natural selection?
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The type of selection that
favors the intermediate form
of an organism.
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What is stabilizing selection?
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There are 80 red flowers out
of a population of 100
flowers. The rest of the
flowers are white.
q=?
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What is 0.45?
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22 ducks in a population of
50 have small bills. The
number of ducks with
medium-sized bills is ___.
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What is 22?
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The formation of a new
species.
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What is speciation?
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A theory that speciation may
occur during brief periods of
rapid genetic change.
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What is punctuated
equilibrium?
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A highway is built across an
abandoned field. This can
lead the ___ of some
species.
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What is geographic
isolation?
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The inability of formerly
interbreeding organisms to
produce offspring.
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What is reproductive
isolation?
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Disruption of genetic
equilibrium leads to changes
in the ___ of a population.
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What is gene pool?
A shift in allele frequencies
in a population due to
random events or chance.
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What is genetic drift?