Bio171-F10-Lec 2 - Biology 171 Friday, September 10, 2010...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 2: Overview of Biodiversity & Ecology Biology 171 Friday, September 10, 2010 Lecture 1 (concluded) Characteristics of Life Emergent Properties of Biology Saliency of Ecology and Evolution (why it matters) Overview of Biodiversity Overview of Ecology Today’s Topics: Announcements Next Week in Discussion: What is Life? Text Reading: Lecture 2: 4 th ed: Chapters 1 (5-8), 50 (993-995) 3 rd ed: Chapters 1 (6-10), 29 (594), 50 (1125-1127) Lecture 3 : 4 th ed: Chapters 41 (811-814), 44 (861-877) 3 rd ed: Chapters 41 (921-926), 44 (978-997)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
“Science*” is a formal method of generating new knowledge that aims to build a supportable, evidence-based understanding of our natural world ( i.e. , the universe) - how does nature work? *Derived from the Latin scientia (knowledge) What is Science? Biology is the scientific study of life.
Background image of page 2
However, all scientific theories, even the most accepted, are open to revision in light of new discoveries - e.g., Einstein’s General Theory of Relativity has superseded Newton’s Theory of Gravitation at very large and very small scales. Unlike a mathematical proof, a scientific theory is always open to falsification if new evidence is presented. The word “proof” should not be used for scientific theories. Scientists never claim absolute knowledge. Until the Industrial Revolution, science was a topic of intellectual curiosity and had little impact on everyday life. Why should we care about Science?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Reason # 1 A continuous food oF new scienti±c knowledge, applied through modern technology, increasingly touches on all aspects oF our lives.
Background image of page 4
Reason # 2 Science is by nature amoral - scientifc knowledge can be applied For morally good or morally bad purposes. Morality is beyond the purview oF science. 1954 Jonas Salk invents the polio vaccine 1952 Invention oF the Hydrogen bomb
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Limitations of Science Many complex questions cannot be studied using classic scientific methodology: Global Climate Change. Control Planet? Treatment Planet? Requires qualitatively different approaches using empirical data to generate sophisticated simulation models in order to predict likely outcomes
Background image of page 6
Limitations of Science Henri Rousseau, Tropical Forest with Monkeys, 1910 Some scientific studies are poorly done and have low explanatory power. This can produce widely conflicting claims that can be difficult to resolve.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Comparison of the Atkins, Ornish, Weight Watchers, and Zone Diets for Weight Loss and Heart Disease Risk Reduction JAMA. 2005;293:43-53. Objective To assess adherence rates and the effectiveness of 4 popular diets (Atkins, Zone, Weight Watchers, and Ornish) for weight loss and cardiac risk factor reduction. Intervention A total of 160 participants were randomly assigned to either Atkins (carbohydrate restriction, n=40), Zone (macronutrient balance, n=40), Weight Watchers (calorie restriction, n=40), or Ornish (fat restriction, n=40) diet groups. After 2 months of maximum effort, participants selected their own levels of dietary adherence. Main Outcome Measures
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2012 for the course BIO 171 taught by Professor Josephinekurdziel during the Fall '08 term at University of Michigan.

Page1 / 53

Bio171-F10-Lec 2 - Biology 171 Friday, September 10, 2010...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online