Vu - Vu John Biology 101 Section 3 MWF 10:00AM 10:50AM...

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Vu, John Biology 101, Section 3 MWF 10:00AM - 10:50AM Notes: Sustaining the Variety of Life The Earth is becoming poorer. The lands and oceans are becoming irreversibly worst with pollution and environmental dangers done mostly by humans. Extinction is a natural process of one in a million every year. However, the actual rate is 100 times higher with a rate of one every year. Compared to a few centuries ago, the rate of mass extinction is 50 times faster and broader. Extinction ages ago were not as bad as current day extinction because species were able to rebound by due to natural selection. In the modern day, however, if species were to go extinct, they would not be able to make such a comeback. Extinction will lead to the end of biodiversity. Biodiversity is important because humans depend on animals and plants for things such food, shelter, clothing, oxygen and more. By killing other species, we are endangering ourselves because the earth’s ecosystem would become distraught and troubled.
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