Biology

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If you're taking Biology or AP Biology in High School or taking first-year biology in college, we're here to help! Look for the Class help sections in different subjects for class-specific content. We'll be adding more classes as we go along, so keep an eye out.
A brief introduction to biology
Biology, defined as the scientific study of life, is an incredibly broad and diverse field. In many ways, it's as kaleidoscopic and rich as living organisms themselves. Biologists study life at many scales, from cells to organisms to entire ecosystems. Begin your own biological journey here!
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A brief introduction to biology
Biology, defined as the scientific study of life, is an incredibly broad and diverse field. In many ways, it's as kaleidoscopic and rich as living organisms themselves. Biologists study life at many scales, from cells to organisms to entire ecosystems. Begin your own biological journey here!
Start learning
Preparing to study biology
Biology draws on concepts from chemistry, math, and physics. See how to best prepare yourself for a biology course.
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