Which of the following lifeforms appeared first in the geologic record?
A) dinosaurs
B) mammals
C) plants
D) fishes
E) reptiles
Correct Answer:
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Q36: After data have been analyzed, tentative explanations
Q37: A _ is a scientific concept that
Q38: The Earth's system that includes the oceans,
Q39: Rock deep within the Earth is _
Q40: The _ and the Alpine Fault of
Q42: Plate tectonics is a unifying idea that
Q43: The two major types of crust are
Q44: Fossil evidence indicates that dinosaurs became extinct
Q45: A _, by scientists definition, is something
Q46: A _ boundary occurs where plates move
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