
Darwin and the Cambrian Explosion
Interactive Video
•
Biology, Science, History
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was Darwin's initial reaction to the Cambrian Explosion?
He considered it a solved mystery.
He was deeply troubled by it.
He believed it was a myth.
He ignored it completely.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Darwin, why did the animals appear suddenly in the fossil record?
Because the animals were mythical.
Because the fossil record was incomplete.
Because the animals evolved rapidly.
Because the fossil record was complete.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Darwin believe would happen with more paleontological discoveries?
The mystery of the Cambrian Explosion would be solved.
The Cambrian Explosion would be proven false.
New species would be discovered.
The fossil record would remain unchanged.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did the new fossil discoveries in the Burgess Shale reveal?
A complete fossil record of the Cambrian period.
No new information about the Cambrian period.
More Cambrian animals than Darwin knew.
Fewer Cambrian animals than expected.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did the new discoveries affect the understanding of the Cambrian Explosion?
They disproved the Cambrian Explosion.
They made the mystery more acute.
They solved the mystery completely.
They had no impact on the mystery.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many phyla first appeared during the Cambrian period?
25
20
15
10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a phylum in the context of animal classification?
A type of Cambrian animal.
The largest division of animal classification.
The smallest division of animal classification.
A type of fossil.
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