Which of the following is NOT true regarding the history of life on Earth?
A) The history of planet Earth includes alternations between colder periods ("icehouses") and warmer periods ("greenhouses") on the surface of the planet.
B) The rise of more complex organisms such as eukaryotes has resulted in a reduction in diversity of more "primitive" organisms such as bacteria.
C) There have been repeated incidents of mass extinction in the history of the planet in which species diversity has been reduced by 50% or more.
D) There is more oxygen in the atmosphere today than there was early in Earth history.
Correct Answer:
Verified
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