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