In some eras of the Phanerozoic, living things on Earth changed significantly
Which selection...
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Physics, 31.03.2020 16:43 myrkaxsanchezz
In some eras of the Phanerozoic, living things on Earth changed significantly
Which selection from the article provides the BEST support for the statement above?
(A)
It contained methane, ammonia and other gases that most life on Earth today would not be able to
breathe. At the beginning of this period rocks and the continents began to form. The first living
organisms -- bacteria -- appeared.
The Phanerozoic eon stretches from about 542 million years ago to the present. It is divided into three
major eras: the Paleozoic, the Mesozoic and the Cenozoic.
At the beginning of the Paleozoic the climate was generally mild, and animals and plants lived only in
the oceans. By the end of the era about half of all animal groups as well as many plants had evolved.
The Mesozoic era lasted about 185.5 million years, from about 251 million years ago to about 65.5
million years ago. It is sometimes called the Age of Reptiles because reptiles dominated the land.
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