Humans & Caffiene
The author's, the writter of the book, purpose was to describe to reader's why bacteria, a small micro organism, can live off of caffiene but humans are not able to.
"Bacteria get all the calories they need from it" In other words bacteria do not need much to live on, just the tiniest bit of it. Humans need it all, vitamins, minerals, etc unlike bacteria. "Bacterium, it possesses several enzymes that do things to caffiene that human's can't" With these enzymes bacteria can break down and use caffiene for their energy, and food; being able to live off of it. "We don't have the gears to digest the derrivates further" In humans, the body takes the caffiene and uses it as a source of energy and thats all, nothing else. Then afterwards it is useless to the body.
Bacteria has the capability to use caffiene in ways that humans can't, allowing them to be able to live off of caffiene.
The author clearly explained why bacteria, but not humans can live off of caffiene with good examples, and further explanation.
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