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Midterm

BISC 102 Midterm: BISC 102 SUMMARY SHEET MIDTERM 1

20 Pages
39 Views
Spring 2018

Department
Biological Sciences
Course Code
BISC 102
Professor
Ron Ydenberg
Study Guide
Midterm

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!1
How to think about life on earth
“Brief summary”
-before science developed, most cultures explained life using myths in which supernatural
beings created humans and their world"
-what gradually disposed of these ancient beliefs, was science having its principle that ideas
must be tested against data"
-the central historical idea about relationships between the lifeforms on our planet is
summarized in “The Great Chain of Being”"
-arranges lifeforms in a hierarchy or ladder, with some “higher” or “better” than others"
-Aristotle "
-humans at the top, with only gods ranking higher"
-“The Enlightenment”"
-1700’s establishing modern science, medicine, philosophy, industry, political economy
and government"
-as the middle ages closed, scientists figures out that Earth rotated around the sun and that
the planet was very old and constantly changing"
-humans did not evolve from apes and we do not occupy a higher rung on the evolutionary
ladder"
-any two lifeforms on the planet must share a branching point at some point in the past"
-last universal common ancestor (LUCA) existed about 3800 mya"
-to be able to understand how life originated you need to learn the basics of metabolism"
-mostly about tracking electrons as they are moved from their source, along electron
transport chains and then passed o to receptor compounds"
-the atmosphere is “biogenic” - maintained by life"
-if all life became extinct, the atmosphere would quickly wind down to an equilibrium state
consisting almost entirely of carbon dioxide "
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!2
"
IMPORTANT EVENTS SHAPING
EUROPEAN AND SCIENTIFIC WORLD
PRIOR TO DARWIN’S TIME
May 29, 1453
1347-49
Renaissance
1492
1517
Enlightenment
Industrial Revolution
‘Modern’ democracies emerge
major events of the precambrian
continental positions during the
phanerozoic
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!3
"
major events of the phanerozoic eon
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Description
1 How to think about life on earth Brief summary before science developed, most cultures explained life using myths in which supernatural beings created humans and their world what gradually disposed of these ancient beliefs, was science having its principle that ideas must be tested against data the central historical idea about relationships between the lifeforms on our planet is summarized in The Great Chain of Being arranges lifeforms in a hierarchy or ladder, with some higher or better than others Aristotle humans at the top, with only gods ranking higher The Enlightenment 1700s establishing modern science, medicine, philosophy, industry, political economy and government as the middle ages closed, scientists gures out that Earth rotated around the sun and that the planet was very old and constantly changing humans did not evolve from apes and we do not occupy a higher rung on the evolutionary ladder any two lifeforms on the planet must share a branching point at some point in the past last universal common ancestor (LUCA) existed about 3800 mya to be able to understand how life originated you need to learn the basics of metabolism mostly about tracking electrons as they are moved from their source, along electron transport chains and then passed o to receptor compounds the atmosphere is biogenic maintained by life if all life became extinct, the atmosphere would quickly wind down to an equilibrium state consisting almost entirely of carbon dioxide
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