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Copy of AP Bio- Introductory Presentation
Transcript of Copy of AP Bio- Introductory Presentation
A way to think.
A body of knowledge
Notes on the "
: Complex Simple
Source: David Ng
Let Us Begin...
Science is not the only way of thinking
How is science similar? How is it different?
Is a thing just the sum of its parts?
Each Level of Organization emerges from the
interactions of the components of the level beneath
2 Major Modes of Scientific Thought
A Generalized System
The output decreases the process.
"more gets you less"
Regulatory in nature
The output increases the process.
"more gets you more"
Accelerating in nature
Leads to a Transformation
To understand systems,
The complexity of models is inherently limited.
Reproduction & Development
Energy & Matter
Life's Information System
The Fundamental Unifying Theory of Biology
The world is a very old place.
~4.5 billion years of evolution
Revolutionary by itself
A simple idea:
variations in organisms compete for limited resources
the best competitors survive and reproduce
All organisms present on the Earth are descended from one common ancestor.
If this doesn't blow your mind, then nothing ever will.
Should reflect common ancestry
The Unity & Diversity of Life
Similarity in cellular organelles in different eukaryotes
Adaptations for flight in gulls
Convergence in flight adaptations in bats
Features that allow an organism to survive in an environment
Floral adaptations in orchids
Camouflage in Whipporwhils
Order emerges from the processes of life.
Life is subject to the energy constraints of the Universe.
No magic allowed!
The high order in living systems is maintained by processing energy and matter.
Matter cycles through life
Different Energy sources for different organisms
However it happens, it has to happen!
The fundamental units of life
Cells are responsible for all properties of life
Cell division in new lung cells:
is the main information molecule for life
James Watson & Francis Crick
Form fits Function!
Make Sure You Can
How is science different from other ways of understanding the Universe?
What are the major questions that biologists study?
Explain how science works as a process.
Contrast science with other ways of looking at the Universe.
Compare the approach taken by reductionist & systems-level modes of scientific analysis.
Explain why biology is a science.
Give a brief explanation of how life is organized accross several domains of space & time, and why this organization is necessary.