Origins Of Life

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by Krystalradz
Last updated 6 years ago

Evolutionary Biology

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Origins Of Life

Origins Of Life!

Relative Dating vs. Radioactive DatingRelative Dating- Stratigraphy determines the age of a discovery, lower layers on earth are older than the one above them, approximate the age of the discovery based on where it was found in the earth's layers.Radioactive Dating- Uranium sheds atoms on a set schedule until it changed onto a different element just like radioactive elements do. The time it takes for 50 percent of a (r.e) to change is called it's half life. That process is knows as radioactive decay.

The Geological Time Scale

PrecambrianLargest span of time in Earth's history before the current Phanerozoic Eon, and is a Supereon divided into several eons of the geologic time scale

Paleozoic542 million years ago with the Cambrian explosion, marine animals ended 251 million years ago with the end Permian extinction

MesozoicThe era between the Paleozoic and Cenozoic an Cenozoic eras, comprising the Triassic, Jurassic, and Cretaceous periods

CenozoicRelating to the most recent era, following the Mesozoic era and comprising the Teriary and Quaternary periods

Panspermia & BiopoiesisPanspermia- the theory that life on earth originated from mircroorganisms or chemical precursors of life in outer space and able to initiate life on reaching a suitable environmentBiopoiesis- natural process of life arising from non- living matter, such as simple organic compounds, three main types of considerations: the geophysical, chemical, and the biological

The Earth's Atmosphere is a mixture of nitrogen, oxygen, and other gases that surrounds Earth. The atmosphere become thinner until it gradually reaches space.

The state or process of a species, family, or larger group being or becoming extinct.

Adaptive radiation is the diversification of a group of organisms into forms filling different ecological niches.


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