Weekly Review 1 - Weekly Review 1 January 21st-Rachel...

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Weekly Review 1 – January 21 st -Rachel Sheridan –  [email protected]   *Burst of Creativity: time-line; microbes have been here since existence, evolution changes  them; microbes persist Cambrian Explosion: burst of organisms *Microbes exist in all 3 domains of the tree *Article: we look at sequenced genomes… *”Great Oxidation”   many different species after this time *Nitrogen Cycles: take Nitrogen out, and put it back into the atmosphere *River pollution problem: fertilizer run off, ground doesn’t absorb it all and the extra washes  down into the river; algae blooms grow and live off the extra fertilizer, algae die and  *we started studying microbes b/c they were making humans sick;  Bacillus anthracis  – causes  antrax – know what it looked like! *Size-scale: KNOW THIS! Understand relative scale, microscope resolution; Angstrum is TINY – 
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Weekly Review 1 - Weekly Review 1 January 21st-Rachel...

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