Life_in_the_Universe - Guided Notes – Life in the Universe...

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Guided Notes – Life in the UniverseName: Jackie FelixThese notes cover slides 1 - 13 of Video Lecture – Life in the Solar System.For slides 1 - 13 please type or handwrite notes as you watch the video lecture and answer theincluded questions.Life on EarthThe first evidence of life on Earth appeared 3.5 to 4 billion years ago and were calledstromatolites. This first life was based on molecules that were, self replicating andorganic/carbon based.Test Yourself: Early LifeThe earliest evidence for life on Earth dates toa) about 570 million years agob) about 3.8 billion years agoc) about 4.5 billion years agod) about 65 million years agoe) about 2 billion years agoYour answer: B.Implications of Life on EarthThe most common types of organisms are single celled. These two examples of this are calledbacteria and algae. Based on the data quickly life formed on Earth after it was possible to do so,it is quite possible that life may start quickly.

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Term
Winter
Professor
N/A
Tags
Solar System, Bacteria, Chemical element

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