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1. Principles of Biology IIBIOL 2108 31 May 2012 1 Intro_Themes.ppt
2. Theme: Scientific Method 31 May 2012 Intro_Themes.ppt 2
3. 31 May 2012 Intro_Themes.ppt 3 A hypothesis may be verified, but never proven!
4. 31 May 2012 Intro_Themes.ppt 4 Proof (Geometry)
5. 31 May 2012 Intro_Themes.ppt 5 Biological hypothesis Homunculus hypothesis:
Reproduction by fully formed embryo
in father or mother ??
Discovery of sperm & ovum = verification !
living cells could contain homunculi
6. 31 May 2012 Intro_Themes.ppt 6 Biological hypothesis Homunculus hypothesis:
Sperm & ovum later shown NOT to contain homunculi
Chromosomes, DNA instead
Hypothesis FALSIFIED !
7. 31 May 2012 Intro_Themes.ppt 7 LIMITS of SCIENCE: Science studies phenomena that are
observable,
objectively
quantifiable,
measurable
repeatable.
8. 31 May 2012 Intro_Themes.ppt 8 LIMITS of SCIENCE: Science can NOT address questions of Religion, Philosophy, Arts.
Religion.
Is there a god? What is nature of God?
Philosophy.
What is justice? Is capital punishment "cruel and unusual?"
Arts.
Is jazz good music?
Should DaVinci have painted a background in the Mona Lisa?
9. Theme: Evolution & Classification 31 May 2012 Intro_Themes.ppt 9 Living things have evolved and diversified from ancestors that lived in the past.
10. Classification reflects Relationship 31 May 2012 Intro_Themes.ppt 10
11. Theme: Organisms interact with their environments 31 May 2012 Intro_Themes.ppt 11 Flow of energy Cycling of matter Carbon cycle Nitrogen cycle