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Change over time

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Scientist who proposed the theory of evolution by natural selection. CHARLES DARWIN ... Which woodpecker is more closely related to the hairy woodpecker? ... – PowerPoint PPT presentation

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Title: Change over time


1
Change over time
  • EVOLUTION

2
Preserved remains of plants and animals
  • FOSSILS

3
Preserved remains of plants and animals
  • FOSSILS

4
Scientist who proposed the theory of evolution by
natural selection
  • CHARLES DARWIN

5
A well supported testable explanation of
phenomena
  • THEORY

6
Members of a species compete for food, mates, and
living space
  • STRUGGLE FOR EXISTANCE

7
  • Who is being selected for?
  • THE MEDIUM / MIDDLE

8
An INHERITED characteristic that increases an
organisms fitness
  • ADAPTATION

9
Ability of an organism to survive in its
environment
  • FITNESS

10
Organisms that are the best fit will survive and
reproduce successfully
  • SURVIVAL OF THE FITTEST

11
  • What kind of
  • trait is this?
  • POLYGENIC

12
Humans select for the best traits in organisms
  • ARTIFICIAL SELECTION

13
Nature selects for the traits that make the
organism more fit
  • NATURAL SELECTION

14
According to this concept, all organisms have
descended from a common ancestor
  • COMMON DESCENT

15
  • In the geologic time scale---during what era did
    humans appear

16
Structures that have the same structure but
different functions
  • HOMOLOGOUS STRUCTURES

17
The study of embryos of many vertebrates are very
similarthis suggests that vertebrates have
descended from a ______.
  • COMMON ANCESTOR

18
All of the genes that are available to a
population
  • GENE POOL

19
  • Whose experiment is this?
  • MILLER-UREY

20
T / F Evolution has occurred if the relative
frequency of an allele changes over time
  • TRUE

21
When graphing polygenic traits the graph looks
like this
  • BELL SHAPED CURVE

22
Formation of a new species
  • SPECIATION

23
  • What kind of selection is this?
  • DIRECTIONAL SELECTION

24
Two populations are separated by mountains,
rivers, or canyons
  • GEOGRAPHICAL ISOLATION

25
Two or more species reproduce at different times
  • TEMPORAL ISOLATION

26
  • These two species change over time because they
    depend on each other.
  • This is called ____.
  • COEVOLUTION

27
Determining the age of a fossil by comparing its
placement to other fossils in the record
  • RELATIVE DATING

28
The Earths early atmosphere was aerobic or
anaerobic?
  • ANAEROBIC NO OXYGEN

29
Unrelated species evolve similar characteristics
  • CONVERGENT EVOLUTION

30
Two species evolve in response to changes in each
other
  • COEVOLUTION

31
  • This species inherited a characteristic to make
    it better fit to the environment.
  • This is called an ______.
  • ADAPTATION

32
  • These two species who are UNRELATED have evolved
    similar characteristics--- this is called ______.
  • CONVERGENT EVOLUTION

33
List the categories of classification in order
from broadest to most specific
  • Kingdom
  • Phylum
  • Class
  • Order
  • Family
  • Genus
  • Species Most specific

34
  • Homo sapienWhat is the genus and what is the
    species?
  • Homo---Genus
  • Sapien---species

35
  • Which organism is more closely related to
    dinosaurs and birds?
  • CROCODILES

36
  • Which woodpecker is more closely related to the
    hairy woodpecker?
  • The red-bellied or the ladder-backed?
  • LADDER-BACKED, THEY ARE IN THE SAME GENUS!!

37
  • What is the study of classification of living
    organisms?
  • TAXONOMY

38
TEST TOMORROW
  • CUMULATIVE TEST IS WEDNESDAY, MARCH 21ST!!!
  • CUMULATIVE MEANS EVERYTHING IS FAIR GAME! CHAPTER
    12, 7-18!
  • STUDY VOCABULARY!
  • COME TO TUTORING TODAY 4-5!
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