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?

2)  Define Fossilization.

a. 

3)  Why aren’t fossils more common?

4)  What type of rocks are fossils found in?

a. 

5)  Name and describe the five types of fossils.

a)

b)

c)

d)

e)

6)  Can a fossil be classified as more than one type?

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?

c. 

12) What super continent existed during the Mesozoic Era?

13) Describe how are sedimentary layers formed?

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

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?

d. 

27) What is embryological development?

28) Define biogeography

29) What are some traits that human embryos share with other mammals?

www.njctl.org 6th Grade PSI Evidence of Common Ancestry