Biology
Explore life from cells to ecosystems
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All Chapters
View Full ListIntroduction to Biology
Scientific method, characteristics of life, and basic principles
Cell Structure and Function
Organelles, cell membrane, and cellular processes
Photosynthesis
Light reactions, Calvin cycle, and energy conversion
Cellular Respiration
Glycolysis, Krebs cycle, and electron transport chain
Genetics and Heredity
Mendelian genetics, Punnett squares, inheritance patterns
DNA and RNA
Structure, replication, transcription, and translation
Evolution and Natural Selection
Darwin's theory, evidence for evolution, speciation
Ecology and Ecosystems
Energy flow, food webs, biomes, and populations
Human Body Systems
Circulatory, respiratory, digestive, and nervous systems
Classification and Diversity
Taxonomy, domains, kingdoms, and biodiversity
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Comprehensive Biology Learning for U.S. Students
LearnAppu's Biology program provides a complete learning experience from cellular biology to ecology and human body systems. Our curriculum covers all essential topics for middle school, high school, AP Biology, and introductory college courses.
Using our proven four-layer learning system, students progress through clear lectures, guided practice, AI-powered feedback in Doctor Mode, and rigorous mastery checks. This ensures deep understanding of biological concepts, not just memorization of terms.
Each chapter includes diagrams, worked examples, practice problems, and real-world applications. Our biology curriculum aligns with Next Generation Science Standards (NGSS) and prepares students for AP exams, SAT Subject Tests, and MCAT preparation.
Explore the living world with LearnAppu—from the molecular machinery of cells to the interconnected web of life on Earth.