Download Practice Test UNIT 3 LT1 Multiple Choice Identify the choice that

Practice Test UNIT 3 LT1
Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. Which of the following factors makes life on earth possible?
a. the earth's orbit is the correct distance from the sun
b. the amount of oxygen present in the atmosphere is not too little or too much
c. temperatures remain relatively stale despite an increased amount of energy emitted from
the sun
d. an ozone layer exists due to the evolution of plants
e. All of the above.
2. Evidence for the evolution of life comes from all of the following except
a. chemical experiments.
b. fossils.
c. chemical analysis of ancient rocks and core samples.
d. the Bible.
e. DNA mutations.
3. Within a population and due to competition between individuals, those individuals with an advantage will
survive to pass their genes on to the next generation. This idea is called
a. evolution
b. adaptation
c. Darwinian theory
d. speciation
e. natural selection
4. Which of the following best describe biologists' current hypothesis about the production of the earth's
atmospheric oxygen?
a. Photosynthesis by terrestrial plants produced atmospheric oxygen.
b. The breakdown of iron ore deposits produced atmospheric oxygen.
c. Photosynthesis by cyanobacteria produced atmospheric oxygen.
d. Chemosynthesis by terrestrial plants produced atmospheric oxygen.
e. Chemosynthesis by aquatic plants produced atmospheric oxygen.
5. The fossil record is incomplete because
a. not all fossils have been found.
b. some fossils have decomposed.
c. some life forms left no fossils.
d. All of these answers.
e. None of these answers.
6. Mutations can be caused by
a. ultraviolet light.
b. X rays.
c. certain chemicals.
d. radioactivity.
e. All of these answers.
7. Which of the following is not a condition necessary for biological evolution to occur?
a. reproduction must be asexual
b. there must be genetic variability within a population
c. the trait must be heritable
d. the trait must lead to differential reproduction
e. All of the above are true.
____ 8. Which of the following is false? Coevolution
a. occurs when interacting species exert selective pressures on each other.
b. occurs between plants and the herbivores that eat them.
c. may play a role in the evolution of camouflage.
d. leads to competitive relationships.
e. All of these answers.
____ 9. Which of the following events have forced species to adapt to environmental conditions or go extinct?
a. drastic heating and cooling of the earth
b. meteorites and asteroids hitting the earth
c. upheaval of the earth's crust
d. a and b only
e. All of the above.
____ 10. Which of the following is not a common misconception about evolution?
a. Evolution is a grand plan of the perfecting of species.
b. In a Darwinian world, the strongest survive.
c. Humans evolved from apes.
d. The key to survival in a Darwinian world is coexistence through occupying different
niches.
e. In a Darwinian world, the biggest survive.
True/False
Indicate whether the statement is true or false.
____ 11. The idea that organisms change over time and are descended from a single common ancestor originated with
Charles Darwin and Alfred Russel Wallace.
____ 12. The fossil record represents 99% of all species that have ever existed.
____ 13. Individual organisms evolve to become genetically different.
____ 14. Mutations are sometimes beneficial.
____ 15. Selective breeding is a method of artificial selection.
____ 16. When local environmental conditions change, species may become extinct through background extinction.
____ 17. In speciation, two species interbreed to form one new species.
____ 18. Natural Selection relies on three truths, one of which is based on genetic mutations.
____ 19. Evolution comes about only through the process of natural selection.
____ 20. Houseflies would probably adapt to an environmental change much quicker than a human.
____ 21. Survival of the fittest refers to those individuals that leave the most offspring.
____ 22. Evolution by natural selection will ultimately result in species becoming perfectly adapted to their
environments.
____ 23. Extinction is the permanent loss of genetic diversity.
____ 24. Natural selection acts via environmental conditions on populations to increase their survival rate.
____ 25. Genetic engineering involves making a modified gene, making a transgenic cell, and then growing a
genetically altered organism.
____ 26. Mutations must occur for biological evolution to happen.
____ 27. An individual's acquired ability to jump could be the beginning of evolution.
____ 28. Geographic isolation and reproductive isolation are the two processes that affect the number and types of
species on earth.
Completion
Complete each statement.
29. A(An) ____________________ includes an organism's range of tolerance for physical and chemical
conditions.
30. ____________________ facilitates one species developing into two through mutation or natural selection.
31. Genetically modified bacteria used to clean up oil spills are a result of ____________________.
32. ____________________ in any cell can result in new genetic traits that can produce a better chance of
survival.
33. The ice age is an example of ____________________.
34. Scientists can use ____________________ to reduce the possibility that the offspring of a male with Down
syndrome will not have the genetic disorder.
35. If a species of frogs becomes threatened because they can only live in a narrow range of temperatures, they
would be classified as a(an) ____________________.
36. The most famous and perhaps the most controversial sheep Dolly was produced as a result of
____________________.
Essay
37. a) Discuss how evolution can lead to biodiversity.
b.) Give an example of an organism that has gone through speciation and what the environmental cause for it
was.
c.) Discuss 2 limitations of a species’ ability to adapt to new environmental conditions.
d.) List one species that has failed to adapt to changing environmental conditions that is either endangered or
now extinct and discuss the environmental change that caused this.
Practice Test UNIT 3 LT1
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
TOP:
ANS:
TOP:
ANS:
TOP:
ANS:
TOP:
ANS:
TOP:
E
PTS: 1
DIF: E
TOP:
D
PTS: 1
DIF: E
TOP:
E
PTS: 1
DIF: M
TOP:
C
PTS: 1
DIF: D
TOP:
D
PTS: 1
DIF: M
TOP:
E
PTS: 1
DIF: E
Evolution, Natural Selection, and Adaptation
A
PTS: 1
DIF: M
Evolution, Natural Selection, and Adaptation
D
PTS: 1
DIF: D
Evolution, Natural Selection, and Adaptation
E
PTS: 1
DIF: M
Geologic Process, Climate Change, Catastrophes, and Evolution
D
PTS: 1
DIF: D
Speciation, Extinction, and Biodiversity
TRUE/FALSE
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
F
F
F
T
T
T
F
F
F
T
T
F
T
F
T
T
F
F
COMPLETION
29. ANS: niche
PTS:
PTS:
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PTS:
PTS:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
M
E
M
M
E
D
M
M
M
M
M
M
D
E
D
E
M
M
Origins of Life
Origins of Life
Origins of Life
Origins of Life
Origins of Life
PTS: 1
DIF: E
30. ANS: Reproductive isolation
PTS: 1
DIF: M
31. ANS: gene splicing
PTS: 1
32. ANS: Mutation
DIF: D
PTS: 1
DIF: E
33. ANS: mass extinction
PTS: 1
DIF: D
34. ANS: genetic engineering or gene splicing
PTS: 1
DIF: M
35. ANS: specialist species
PTS: 1
36. ANS: cloning
DIF: M
PTS: 1
DIF: E
ESSAY
37. ANS:
!
PTS: 1