3093668
Description
Quiz by PEDRO ALVAREZ JIMENEZ, updated more than 1 year ago
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Created by PEDRO ALVAREZ JIMENEZ
almost 9 years ago
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Question 1
Question
In multicellular organisms, how can they get variation of DNA?
Answer
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With a high rate of mutations
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With sexual reproduction
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Only with recombination
Question 2
Question
Why did the ozone layer allow life on land?
Answer
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It protected from U.V radiation
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It protected from very high oxygen concentration
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It protected from high temperatures
Question 3
Question
List the 3 eras that make up the Phanerozoic Eon
Answer
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Paleozoic, Mesozoic and Phanerozoic
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Paleozoic, Mesozoic and Cenoloic
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Paleozoic, Mesozoic and Cenozoic
Question 4
Answer
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A period of high rate of volcanic activity
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An great increasing of biodiversity
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The killing of the most of microorganisms
Question 5
Question
Where did the meteorite that wiped out dinosaurs fall?
Answer
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In the Gobi desert
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In the middle of the Atlantic Ocean
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In the Yucatán Peninsula
Question 6
Question
Which one of this two appeared before, flowers or grass?
Answer
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Flowers and then grass
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Grass and then flowers
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Both of them at the same time
Question 7
Answer
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20000 years ago
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200000 years ago
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2000000 years ago
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