Presentation on theme: "AP Biology Wednesday, January 22, 2014 Science as a process of inquiry Evolution Energy transfer Continuity & Change Relationship of structure to function."— Presentation transcript:
Science as a process of inquiry Evolution Energy transfer Continuity & Change Relationship of structure to function Regulation Interdependence in nature Science, technology & society
A. Built on repeatable observations & testable, falsifiable hypotheses B. You question and investigate
A. The core theme to Biology B. Evolutionary change is a product of the process of natural selection Organisms dont adapt; Organisms have adaptations.
2007-2008 -- Theodosius Dobzhansky March 1973 Geneticist, Columbia University (1900-1975)
C. Evolution explains unity and diversity 1.Unity a)what do organisms have in common & why do similarities exist? i.common biochemistry & physiology ii.evolutionary relationships iii.connected through common ancestor 2.Diversity a)But why are there differences? i.natural selection ii.adaptations allow different individuals to survive in different environments
A. Life is an open system 1.Energy Input a)Must flow in and out constantly 2.Nutrient Input a)Recycling of nutrients via carbon, nitrogen, water, and phosphorous cycles ENTROPY RULES! DECOMPOSERS RULE, too! nutrients
You think theyre eating… Theyre harvesting energy!
A. Continuity of life is based on heritable information in the form of DNA 1.DNA – the genetic material – carries biological information from one generation to the next You can make more, a lot like you! TRAITTRAIT
A. Structure and function and be seen at every level in biology organism cell organelle organ
A. Organisms must maintain a balance 1.Maintained through homeostasis 2.Feedback driven a)Monitors and operates only when needed
A. Everything is connected 1.Communities and ecosystems are intertwined with one another
A. Science & technology must function within the rules of society 1.ethics
A. Biology is an ever expanding body of knowledge 1.too much to memorize it all 2.need to generalize 3.create a framework upon which to organize new knowledge 4.themes are the key to understanding the nature of living organisms