Geography, 11.01.2021 16:10 tristanlindor5908
The Cambrian Period was the first geological period of the Paleozoic Era, which of the following characterizes the Cambrian period? Choose the correct answer.
a
dinosaurs flourished, all life lived in the sea and humans appeared
b
invertebrates developed, all life lived in the sea, and ocean organisms with shells and outer skeletons developed
c
single-celled life, humans appeared, and dinosaurs flourished
d
dinosaurs flourished, multi-celled life appeared, and all life lived on land
Answers: 3
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The Cambrian Period was the first geological period of the Paleozoic Era, which of the following cha...
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