"Your chromosomes have combined beautifully ..."
The World of AP Biology
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Big Idea #1
Genetic Drift
Speciation & Extinction
Big Idea #2
Photosynthesis & Respiration
Positive & Negative Feedback
Big Idea #3
Genetic Variation
Nervous System
Big Idea #4
Cooperative Interactions
Genotype Expressions
Here you will learn everything that needs to be learned about the four main ideas in AP Biology! Click on each Big Idea tab and scroll down to view more information on the big idea topics.