Glencoe Biology

Chapter 14: The History of Life

Standardized Test Practice-English

1
A technique using radioactive isotope decay to measure the age of rock is called ____.
A)radiometric dating
B)relative dating
C)fossil estimation
D)isotope harvesting
2
According to the law of superposition, which rock layer is the oldest? (layer A is the top and layer F is the bottom)

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A)layer D
B)layer B
C)layer E
D)layer A
3
What model represents the major geological and biological events of Earth's history?
A)geologic time scale
B)Precambrian model
C)era scale
D)fossil dating system
4
The relatively sudden development of many animal ancestors is called ____.
A)the Mesozoic explosion
B)biogenesis
C)species origination
D)the Cambrian explosion
5
The ____ era was characterized by mammals becoming the dominant land animals.
A)Mesozoic
B)Cenozoic
C)Paleozoic
D)Mammalian
6
This graph shows the decay of a carbon isotope. What is its approximate half-life?

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A)1845 years
B)40,110 years
C)5730 years
D)9955 years
7
What does this depict?

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A)effect of plate tectonics during Mesozoic era
B)effect of plate tectonics during Precambrian time
C)shifting of continental plates in last 10,000 years
D)movement of continents towards each other
8
Which of these does not accurately describe Precambrian time?
A)eukaryotic cells emerged
B)autotrophic prokaryotes provided oxygen
C)extensive glaciations occurred
D)first reptiles appeared
9
Why is radiometric dating not used to measure fossil age?
A)Radioactive isotopes are only found in sedimentary rock.
B)Radioactive isotopes are not found in sedimentary rocks.
C)Fossils are only found in igneous rock.
D)Fossils are only found in metamorphic rock.
10
What resulted from the experiment shown here?

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A)Flies appeared in closed containers.
B)Theory of biogenesis disproved.
C)Spontaneous generation was disproved.
D)Spontaneous generation was confirmed.
11
Scientists believe that ____ were necessary for the molecular processes that originated life.
A)metabolic pathways
B)spontaneous generations
C)complex organisms
D)eukaryotes
12
What occurred in step C of this experiment?

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A)Lack of microorganisms proved spontaneous generation.
B)Growth of microorganisms proved spontaneous generation.
C)Lack of microorganisms disproved biogenesis.
D)Growth of microorganisms disproved spontaneous generation.
13
What role does clay have in this model?

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A)breaks down protein
B)stabilizes amino acids
C)separates amino acids
D)codes for DNA
14
How was cyanobacteria important in the formation of early life?
A)evolved into protein
B)produced carbon dioxide to form ozone
C)evolved into arches
D)produced oxygen to form ozone
15
What did experiments testing Oparin's primordial soup hypothesis try to replicate?
A)Earth's original atmospheric conditions
B)plant habitat of Carboniferous period
C)DNA of early organisms
D)solar energy
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