Its a compound because they come together
Mezoic era began 252m years ago and ended 6.6m years ago.
It was a time of geological and biological transition. During this era the continents began to drift to their present configuration.
3 of the largest mass extinction occurred at this era. One which include the dinosaurs.
I hope this helped. :)
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The states of matter is solid,liquid and gas & you go from there.
B , because some organelles located in plant cells are not present in the animal cell