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/100 Grade
Science 7 Test- Evolution (Chapter 5)
Name
I.
Date
Period
Identify the FOUR factors that affect the process of Natural Selection. (HINT: How can
Natural Selection occur?)
1.
2.
3.
4.
II.
List THREE types of evidence from organisms’ that scientists’ use to determine similarities
and relationships among the species.
4.
5.
6.
III.
Match each word with its definition
Write the letter of the correct answer on the line to the left.
7. Homologous Structure
A. Provides clues on when a new species evolved.
8. Species
B. Theory that states evolution occurred slowly.
9. Fossil Record
C. Diagram that shows how different organisms are
related. (From a common ancestor)
10. Extinct
D. A well-tested concept that explains a wide range
of observations.
11. Adaptation
E. A trait that helps an organism survive and reproduce.
12. Evolution
F. A group of similar organisms that can mate with each
other and produce offspring.
13. Scientific Theory
G. Individuals better adapted to their environment are
more likely to survive.
14. Natural Selection
H. A species that is no longer alive.
15. Branching Tree
I. Similar structures that related species have inherited
from a common ancestor.
J. The gradual change in a species over time.
16. Gradualism
IV.
Multiple Choice
Write the letter of the correct answer on the line at the left.
17. Which of the following is considered a scientific theory?
a. variation
c. evolution
b. fossil record
d. overproduction
18. Most of what scientists know about extinct species is based on
a. Studies of the species before it became extinct.
b. Studies of the few remaining organisms of the species.
c. Studies of organisms that are closely related to the species.
d. Studying the fossil record.
19. On the Beagle, Charles Darwin’s job was to
a. Study the formation of the Galapagos Islands.
b. Learn about the living things he saw on voyage.
c. Make a map of the world.
d. Find evidence of extinct species.
20. What is the theory that evolution occurs slowly but steadily?
a. Darwinism
b. Gradualism
c. Adaptation
d. Punctuated equilibrium
21. An adaptation is any trait that helps an organism
a. survive and reproduce.
b. fight better
c. overproduce variations
d. become larger and stronger
22. Most fossils form when they become buried in
a. molds
b. leaves, stems, and roots
c. sediment
d. radioactive elements
23. One of the main ways by which species form is through
a. geographic isolation
b. continental drift
c. genetic similarities
d. movement between islands
24. A species is a group of similar organisms that can
a. successfully compete against other species
b. overproduce helpful traits
c. adapt to new environmental conditions
d. mate and produce fertile offspring
25. What is punctuated equilibrium?
a. The theory that evolution occurs during short periods of rapid change.
b. The theory that evolution occurs slowly but steadily over time.
c. The theory that movement of the continents causes evolution.
d. The theory that better adapted organisms are more likely to survive and reproduce.
26. A trait that helps an organism survive and reproduce is called a(n)
a. variation
b. adaptation
c. species
d. selection
27. The preserved remains or traces of an organism that lived in the past are called
a. species
b. fossils
c. sediments
d. homologous structures
28. Which of these is not used as evidence for evolution?
a. DNA sequence
b. stages of development
c. body size
d. body structure
29. Changes in a species over long periods of time is called
a. multiple alleles
b. evolution
c. homologous structures
c. developmental stages
30. After continental drift split apart Pangaea, new species evolved through
a. meiosis
b. selective breeding
c. mitosis
d. geographic isolation
31. The problem with the fossil record is that
a. it has gaps
b. it provides false clues
c. it cannot tell you how old it is
d. there are too few fossils
V.
True or False
Write down true if the statement is true, and false if the statement is false.
32. Any difference between individuals of the same species is called variation.
33. The millions of fossils that scientists have collected make up the fossil record.
34. Related species have similar body structures because they inherited the same genes from
a common offspring.
35. Most fossils are complete organisms.
36. Darwin’s idea about how evolution occurs is called extinction.
37. Darwin knew a lot about genetics.
38. Homologous structures are similar structures in related organisms.
VI.
Completion
Fill in the line to complete each statement.
39. The process through which species produce many more offspring than can possibly survive is called
.
40. Evolution occurs by means of a process called
41. A species is
42.
.
if no members of that species are still alive.
traveled on the Beagle and wrote The Origin of Species.
43. The process through which species must fight for food, shelter and survival is called
.
44. The super continent where all continents were joined is called
.
VII.
Using Science Skills: Interpreting Diagrams
Use the diagram below to answer questions # 45-49.
45. What is this figure called?
46. What is the main purpose of this diagram?
47. The modern bird is most closely related to which animal?
48. What is the common ancestor of mammals and turtles?
49. Did crocodilians evolve from dinosaurs?
EXTRA CREDIT
Finish the following paragraph to receive 4 extra points!
Darwin traveled to many continents aboard the
. It was not until
Darwin visited the
that he was able to
observe the greatest diversity of life forms. His most famous observation of finches showed
that these birds had different
, that allowed them to adapt to their
environment. This process of adapting to the environment in order to survive is called
.
Study Guide
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Know your vocabulary. If you understand your vocabulary you will get an A on this test!
Darwin’s Voyage. You can use your homework if you did it!
Gradualism vs. Punctuated equilibria
Adaptation
Fossils. How they are formed, what are they used for, etc.
Fossil Record
Forms of Natural Selection
Similarities among species
Branching tree** Know how to read it!
Study Guide









Know your vocabulary. If you understand your vocabulary you will get an A on this test!
Darwin’s Voyage. You can use your homework if you did it!
Gradualism vs. Punctuated equilibria
Adaptation
Fossils. How they are formed, what are they used for, etc.
Fossil Record
Forms of Natural Selection
Similarities among species
Branching tree** Know how to read it!
Study Guide









Know your vocabulary. If you understand your vocabulary you will get an A on this test!
Darwin’s Voyage. You can use your homework if you did it!
Gradualism vs. Punctuated equilibria
Adaptation
Fossils. How they are formed, what are they used for, etc.
Fossil Record
Forms of Natural Selection
Similarities among species
Branching tree** Know how to read it!