Evidence of Common Ancestry Study Guide
Name ____________________________________
6th Grade PSI Science
Understand the following pieces of information in preparation for your UNIT TEST!
1) What are fossils? How do they form?
a.
b.
2) Define Fossilization.
a.
3) Why aren’t fossils more common?
a.
b.
4) What type of rocks are fossils found in?
a.
5) Name and describe the five types of fossils.
a)
b)
c)
d)
e)
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6th Grade PSI
Evidence of Common Ancestry
6) Can a fossil be classified as more than one type?
a.
7) Name and describe the six fossilization processes
a)
b)
c)
d)
e)
f)
8) How does is fossilization different from petrification?
9) What types of substances preserve an organism to create unaltered preservation?
10)What is the geological timeline?
11)What are the three eras of the Phanerozoic eon? What is each known as?
a.
b.
c.
12)What super continent existed during the Mesozoic Era?
13)Describe how are sedimentary layers formed?
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6th Grade PSI
Evidence of Common Ancestry
14)Define the following principals
a. Principle of Lateral Continuity
b. Principle of Faunal Succession
c. Principle of Original Horizontality
d. Principle of superposition
15)What is the fossil record?
16)Describe how does carbon dating provides the age of a fossil?
17)Define fossil index
18)What are anatomical similarities? How do they support evolution?
19)Define homologies
20)Explain the theory of common ancestry.
21)How does cell functions support the theory of evolution?
22)Define analogous structures
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6th Grade PSI
Evidence of Common Ancestry
23)Define vestigial structures? Give an example.
24)Describe how similarities in DNA support the theory of evolution.
25)Define evolution
26)What are the four mechanisms for evolution?
a.
b.
c.
d.
27)What is embryological development?
28)Define biogeography
29)What are some traits that human embryos share with other mammals?
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6th Grade PSI
Evidence of Common Ancestry