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Biology, 22.06.2019 10:50
Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%
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Biology, 22.06.2019 18:30
12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.
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Biology, 22.06.2019 22:00
In the 1500s, an astronomer developed a new model of the universe. this model had the sun at the center of the universe, not earth. who was this astronomer?
Answers: 1
Why did charles darwin become a biologist?...
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