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Earth's History And Diversity Of Life
Test Description: Earth's History and Diversity of Life Review
Instructions: Answer all questions to get your test result.
1) During what geologic age were trilobites and brachiopods most dominant?
A
Cenozoic era
B
Precambrian
C
Mesozoic era
D
Paleozoic era
2) During what geologic age were reptiles such as dinosaurs most dominant?
A
Cenozoic era
B
Mesozoic era
C
Paleozoic era
D
Precambrian
3) During what geologic age were mammals most dominant?
A
Paleozoic era
B
Cenozoic era
C
Mesozoic era
D
Precambrian
4) Which of the following states that each rock layer is older than the one above it. So, the relative age of the rock or fossil in the rock or fossil in the rock is older if it is farther down in the rock layers?
A
Law of superposition
B
Index fossil evidence
C
Geologic time scale
D
Absolute age
5) Which of the following is NOT a characteristic of an index fossil?
A
The fossil must be found over a wide area of Earth
B
Many fossils of the organisms must be found in rock layers
C
The organism must have lived only during a short part of Earth's history
D
The organism must have lived a long period of geologic time.
6) Which of the following is a way scientists determine the age of ancient rocks and fossils?
A
Relative dating using the law of superposition
B
All of the answer choices
C
Absolute dating using chemical analysis
D
Relative dating using index fossils
7) Which of the following is theorized to have caused the the extinction of many dinosaurs at the end of the Mesozoic era?
A
Volcanic activity
B
Impact of asteroid or comet
C
Man made extinction factors
D
All of the answer choices
8) Which of the following is theorized to have caused the greatest mass extinction in Earth's history at the end of the Paleozoic era?
A
Volcanic activity
B
All of the answer choices
C
Impact from asteroid or comet
D
Man-made extinction factors
9) Which of the following is theorized to have caused many mass extinctions during the Cenozoic era?
A
Impact from asteroid or comet
B
All of the answer choices
C
Volcanic activity
D
Climate changes
10) Which of the following orders geologic time accurately from largest to smallest?
A
Epoch- Era - Period
B
Period - Era - Epoch
C
Era - Period - Epoch
D
Eon - Epoch - Era
11) Which of the following would favor fossil formation?
A
Erosion
B
Scavengers
C
Weathering
D
Rapid burial
12) Which of the following is something fossils DO NOT tell scientists about Earth's past?
A
Environmental conditions on Earth have changed during it's history
B
The diversity of life forms that have existed during Earth's history
C
Most organisms that have lived on Earth have gone extinct
D
Organisms have not changed over time
13) Which of the following would be the LEAST likely to fossilize?
A
Soft bodied organisms
B
Trilobites
C
All of the answer choices
D
Mammals
14) Which of the following would be the MOST likely to fossilize?
A
Skin and Muscle
B
Bones and teeth
C
All of the answer choices
D
Internal organs
15) Which of the following describes the collection of millions of fossils and their placement in chronological order ?
A
Law of superposition
B
Fossil record
C
Index fossils
D
Relative dating
16) Which of the following is a trait or behavior that helps and organism survive and reproduce?
A
Populations
B
Natural selection
C
Adaptation
D
Variations
17) Which of the following describes the process that explains how a species of organisms can change over geologic time?
A
Law of superposition
B
Adaptation
C
Natural selection
D
Extinction
18) Which of the following is NOT a physical trait that enhances an organisms ability to survive and reproduce?
A
Beaks and claws
B
Camouflage
C
Mimicry
D
Hibernation
19) Which of the following is NOT a man-made extinction factor in recent geologic time?
A
Over harvesting
B
Removal of natural habitats
C
Pollution
D
Climate changes
20) Which of the following is NOT a natural extinction factor?
A
Over harvesting
B
Climate changes
C
Impact events
D
Volcanic activity
*select an answer for all questions
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