exam2notes - CHAPTER 25 | BEGINNING OF LIFE-memorize 4...

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CHAPTER 25 | BEGINNING OF LIFE -memorize 4 stages of life -memorize the life chart -think about how interdisciplinary science contributes to understanding history on life on earth. Biology, chemistry, earth sciences, geology, physics, & astronomy have all contributed to understanding the history of life. -When and how did 1 st living cells appear? (The 4 stages of life answers this question) CQ: Which describes half carbon 14 & Uranium 238? 5730 vs. 4.5 billion years CHAPTER 27 | PROKARYOTES Are prokaryotes dependent on us or are we on them? -profoundly influences human health -teaches us much about remarkable diversity of life -many career opportunities, esp. in science, medicine -the harmful germs and helpful microflora to humans looking from a anthropocentric view How do bacteria & archae make a living? -to answer this we need to know what are their sources carbon and energy Why are these antibiotics of R plasmids (resistant genes) effective? Against what are they effective?
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