Lab 8 dating of rocks fossils and geologic events answers

In 1952 Stanley Miller and Harold Urey synthesized organic compounds from inorganic precursors found in the Earth’s original atmosphere, producing more than 20 different amino acids using electrical sparks to simulate lightning.

Speciation is the process by which new species are formed.

Plants take in carbon from the atmosphere and ocean and fix it into themselves.

Animals eat plants and fix the carbon into themselves.

Cynognathus, a Triassic land reptile, fossils are found in South America and Africa.

The Triassic era was between 250,000,000 and 200,000,000 years ago.

I’ve used links to articles in Wikipedia as much as possible because Wiki articles are refined over time with our understanding of the subjectmatter and are less subject to link-rot.

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These reasons will work from the general to the specific.Mutations that give an organism a survival and reproductive advantage will be more likely to show up in offspring.

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