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Q 1/29
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A record of the geologic events and life forms in Earth's history.
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Q 2/29
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A major division of time that is a subdivision of an eon and is itself subdivided into periods.
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29 questions
Q.
A record of the geologic events and life forms in Earth's history.
1
30 sec
Q.
A major division of time that is a subdivision of an eon and is itself subdivided into periods.
2
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Q.
Is one of the several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.
3
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Q.
Chronological collection of life's remains in sedimentary rock layers
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Q.
An event in which many types of living things become extinct at the same time
5
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Q.
A scientist who studies fossils to learn about organisms that lived long ago.
6
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Q.
The Paleozoic Era spans almost 200 million years from 542 to 251 million years ago. It is defined by great explosion of life at the beginning of the era and ends with the largest mass extinction in the history of our planet.
7
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Q.
The name of the single landmass that broke apart 200 million years ago and gave rise to today's continents.
8
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Q.
The era of geologic time from about 251 to 66 million years ago. The Mesozoic Era includes the Triassic, Jurassic, and Cretaceous Periods and is characterized by the development of flying reptiles, birds, and flowering plants and by the appearance and extinction of dinosaurs.
9
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Q.
The current and most recent of the three Phanerozoic geological eras, following the Mesozoic Era and extending from 66 million years ago to the present day.
10
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Q.
Adaptation of populations of organisms to different ways of life and environments.
11
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Q.
A division of time that is a subdivision of a period and is itself subdivided into ages, corresponding to a series in chronostratigraphy.
12
30 sec
Q.
The age of a rock compared to the ages of other rock layers.
13
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Q.
The preserved remains or traces of an organism that lived in the past.
14
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Q.
Chronological collection of life's remains in sedimentary rock layers.
15
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Q.
A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found.
16
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Q.
The top rock layer and its fossils is the youngest and the bottom is the oldest.
17
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Q.
A change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
Changes in physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment.
20
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Q.
Characteristics that are inherited.
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Q.
Any difference between individuals of the same species.
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A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
23
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Q.
Factors that naturally occur
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Q.
See image
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Q.
Humans are the cause of these factors
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Q.
See image
27
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Q.
A term that typically describes a species that no longer has any known living individuals.
28
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Q.
The age of a rock given as the number of years since the rock formed.
