Webquest: Scientific Evidence for Evolution

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Webquest Scientific Evidence for Evolution
Shorecrest HS IBS 2009
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Directions

• As you proceed through this webquest, record all
  work on the graphic organizer
• Remember to print and put it in your lab notebook
  along with the coloring sheet by the due date,
  29/30 October.

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Like all good scientific theories, evolution must
have scientific evidence to support it

• This evidence falls into 8 or more important
  categories
• 1. Fossil Record
• 2. Homologous structures
• 3. Analogous structures
• 4. Vestigial structures
• 5. Geographical distribution
• 6. Embryological studies
• 7. Genetic biochemical comparisons
• 8. Resistance to antibiotics pesticides

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Define the theory of evolution

• Go to the following site for information and then
  define the the theory in your own words
• Interactive Site
• http//www.pbs.org/wgbh/nova/id/predictions.html
• Printable version
• http//www.pbs.org/wgbh/nova/id/pred-nf.html

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1 Fossil Record

• A. Why are fossils considered part of the
  scientific data that supports Evolution?

Watch the quick time video and read the text on
this page http//www.pbs.org/wgbh/evolution/libra
ry/04/3/l_043_01.html
Visit this website to learn about transitional
forms http//www.pbs.org/wgbh/nova/id/transitiona
l.html
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1 Fossil Record (cont.)

• B. What evidence did scientists use to determine
  the fossil they found was that of a whale?
• C. How do scientists use fossils to learn when
  whale ancestors were living on earth?
• Watch the 10 minute video (Video 3 How Do We
  Know Evolution Happens) to learn about these
  questions and answer them in your notebook
• http//www.pbs.org/wgbh/evolution/educators/teachs
  tuds/svideos.html

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2 Homologous structures

• A. Color-code the homologous structural parts on
  the sheet "Adaptive Radiation Mammalian
  Forelimbs."
• B. What are homologous structures?
• C. Why are these considered evidence for Adaptive
  Radiation or Divergent Evolution?

http//www.pbs.org/wgbh/evolution/darwin/origin/in
dex.html
http//evolution.berkeley.edu/evolibrary/article/s
imilarity_hs_01
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3 Analogous structures

• A. What are analogous structures?
• B. How is this evidence for Convergent Evolution?
• http//evolution.berkeley.edu/evolibrary/article/s
  imilarity_hs_01

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4 Vestigial structures

• A. What are vestigial structures?
• Give an example of a vestigial structure in
  humans.
• Give an example of a vestigial structure in some
  other organism.
• B. Why are vestigial structures considered
  evidence for evolution?
• http//www.livescience.com/animals/top10_vestigial
  _organs.html

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5 Geographical Distribution

• A. What did Wallace and Wegener discover?
• How does their evidence support the theory of
  evolution?
• http//evolution.berkeley.edu/evolibrary/article/0
  _0_0/history_16

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6 Embryology

• A. What is embryology?
• Compare the stages of development illustrated on
  the sheet "Comparative Embryology" and in the
  diagrams in the Glencoe textbook (Page 433,
  Figure 18.11)
• Create a branching diagram (like a family tree)
  which shows the degree of relationship the
  animals listed in these pictures (6 total) based
  on the similarity of their embryos
• Draw your labeled diagram in your notebook or on
  the back of the organizer
• B. How do embryological studies provide evidence
  for evolution?

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7. Genetic Biochemical AND8. Resistance to
antibiotics pesticides

• We will study these two types of evidence later
  this year, so leave 7 and 8 blank for now

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More Connections Lucy
A. Where was Lucy found? B. How old is she? C.
What does Lucy tell us about evolution?

http//www.wsu.edu8001/vwsu/gened/learn-modules/t
op_longfor/timeline/afarensis/afarensis-a.html ht
tp//lucyexhibition.com/lucys-discovery.aspx
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More Connections Hydrothermal Vents

• A. What evidence did we learn about in the
  Hydrothermal vent unit that supports the theory
  of evolution?