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Biology, Science, History
7th -
Professional Development
The Paleozoic era
10 questions
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- 1. Multiple Choice
The Paleozoic era is the ــــــــــــــــــــ era in the Phanerozoic eon.
oldest
Youngest
Smallest
Shortest
- 2. Multiple Choice
which two period make up the middle Paleozoic?
Cambrian and Permian
Silurian and carboniferous
Silurian and Devonian
Cambrian and Ordovician
- 3. Multiple Choice
the Paleozoic era ended with ______ .
The biggest party ever
The largest mass extinction in Earths history
Cambrian explosion
- 4. Multiple Choice
periods are subdivided into ـــــــــــــ .
eons
epochs
eras
hours
- 5. Multiple Choice
which of the following did not happen in late Paleozoic?
amphibians disappeared
amphibians evolved
reptiles appeared
coal swamps formed
- 6. Multiple Choice
in which period did coal swamps form?
cambrian
Silurian
Devonian
carboniferous
- 7. Multiple Choice
what marked the end of the Precambrian period and the beginning of the Paleozoic era?
A mass extinction
A volcanic eruption
The Cambrian explosion
An Earthquake
- 8. Multiple Choice
The Paleozoic began how many years ago?
540 years ago
251 billion years ago
542 billion years ago
499 million year ago
542 million years ago
- 9. Multiple Choice
The early Paleozoic was called the age of _______ .
vertebrates
invertebrates
fishes
reptiles
amphibians
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