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.


B

Biology & Microbiology

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__________________Indicate whether the statement is true or false.

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