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Biology 14 Online
OpenStudy (anonymous):

During which era in earth’s history did dinosaurs roam the earth? A. Mesozoic B. Precambrian C. Paleozoic D. Cenozoic

OpenStudy (anonymous):

i think its B. i just wannted to check

OpenStudy (markchernioglo):

Dinosaurs roamed the planet for about 165 million years, during a time in the Earth’s history called the Mesozoic Era. It is difficult to imagine how long this was, until we compare it with ourselves: humans have lived on Earth for less than two million years. During the Mesozoic Era, the Earth’s landmasses changed dramatically, new seas were formed, and plants and animals evolved. ( http://www.factmonster.com/dk/science/dinosaurs/era-of-the-dinosaurs.html)

OpenStudy (markchernioglo):

You were close though. :)

OpenStudy (anonymous):

then a

OpenStudy (markchernioglo):

Yup, are correct. :))))

OpenStudy (anonymous):

thanks

OpenStudy (markchernioglo):

Nice brains you got there keep it up :)

OpenStudy (markchernioglo):

;)

OpenStudy (anonymous):

;-) =^.^=

OpenStudy (anonymous):

could you help me with another one

OpenStudy (markchernioglo):

yea ofcourse just put it as a seperate question. Alright?

OpenStudy (anonymous):

k

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