Origins of life

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by BigCTD
Last updated 6 years ago

Evolutionary Biology

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Origins of life

Origins of life

Relative dating is the science of determining the relative order of past events without necessarily determining their age. This has given us a hypothisis on how old a bone could be in a form of rock layers.

Radiometric dating/Radioactive dating, is a technique used to date materials such as rocks or carbon, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.

The Geological Time Scale is a scale that determines the eras and periods the earth has been around.The Paleozoic Era was when Bacteria was formed in the Ocean. The Precambrian Eon has many Eras. They all contain parts of history on how to Earth could have been created.

Panspermia was the belief that the earth was created by Asteroids and Meteroids and planetoids. People thought that bacteria had to of traveled through space on meteroids.

Organic Evolution is a theory on how the earth was created with all the life and matter. People think that over time people have evolved into new forms of people and genetics. Over time te erath was changing and so were the lifeforms on it.


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