Download 1000

Darwin &
Lamarck
Evidence 1
Evidence 2
Models of
Evolution
Vocabulary
Stuff *
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Final Jeopardy
How does the movement of new individuals
into a population help bring about rapid
evolution?
• They must compete for food and
shelter with other living things. This
competition causes species to
either die out or evolve.
*This seems like Natural Selection to
me!
$200
Survive and Reproduce
Charles Darwin knew that
organisms had traits and
behaviors that allowed them
to do what?
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A single species or common ancestor
Darwin Argued that all
existing species originated
from what?
$600
Adapting to their environments
Darwin thought that
evolution was the result of
organisms doing what?
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A species with adaptations that are well
suited to its environment will survive better
and have more offspring.
Describe Natural Selection
$1000
Acquired traits are handed down from one
generation to the next. Like scars and
tatooes.
What was Larmarck’s Theory
of Evolution
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Fossil Records, bacteria evolving to fight
medicine, and plants being breed into new
plants.
Give an example of direct
evidence of evolution?
$400
Embryology
Homologous structures
Vestigial Structures
What are 3 indirect types of
evidence of evolution?
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Appendix
Wisdom Teeth
Ear wiggling muscles
What is an example of a
vestigial structure in humans?
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Embryos of different organisms are the
same at early stages of development. This
suggest they have come from a common
ancestor
How is embryology evidence
of evolution?
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They show that changes have occurred
within organisms, show that organisms
have a common ancestor, shows that
enough time has passed for evolution to
occur
Why are fossils direct
evidence of evolution?
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Homologous structures show that
organisms have a recent common ancestor
Why are homologous
structures used as evidence of
evolution?
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They are structures that no longer have a
function
What is a vestigial structure?
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Body parts that have a similar structure but
have different functions
What are homologous
Structures?
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Variations are differences in a species that
can be good or bad. An adaptation is a
variation that is good and helps an oganism
survive and reprodice.
How are variations different
from adaptations?
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It takes time for evolution to occur. Over
thousands or millions of years structures get
smaller, shut off, then dissapear.
Why do some vestigial
structures still exist?
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Gradual and Punctuated Equilibrium
What are two models of
evolution?
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Punctuated Equilibrium
If you found many different
fossils for a species in just a
few million years what type
of evolution would this be?
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A species is in a state of equilibrium for an
extended period of time followed by a brief
and rapid period of change that produces a
new species
Explain Punctuated
Equilibrium
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It is a model of evolution that is based on
slow and steady changes
What is gradualism?
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It is the permanent disappearance of a
species
What is extinction?
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Variations
What is the difference in
inherited traits of an organism
that may lead to a new
species?
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Species
Similar organisms whose
members can successfully
reproduce.
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Relative Dating
Method used to estimate the
age of a fossil.
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Opposable thumbs, binocular vision, and
flexible shoulders.
List three characteristics of
primate.
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Hominids had smaller brains.
What separates hominids
from apes?
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Homo habilis
Other than Mr. T… who was
handy?
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Cro-Magnon
Who was artsy?
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Sudden changes in the DNA of an
organism, or an organism finding itself
geographically isolated from the rest of its
popluation.
Name two events that can
cause evolution to occur.
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Neanderthals
Who were the real cavemen?
Stone tools and all!
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Not all dead things become fossil. Not all
fossils have been found.
Give two reasons why the
fossil record might be
incomplete?
The Jeopardy
Champion!