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history biology literature learning education science humanities school "world history" ap tests smart fun chemistry psychology apush whap study "crash cours...

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At Crash Course, we believe that high-quality educational videos should be available to everyone for free! Subscribe for weekly videos from our current courses! The Crash Course team has produced more than 45 courses on a wide variety of subjects, including organic chemistry, literature, world history, biology, philosophy, theater, ecology, and many more!

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Science explains and demystifies the world through the objective of gathering and analyzing data. Explore the natural world, engineering, space, military technology, physics and even supernatural phenomena.

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Biochemistry basic chemistry, metabolism, enzymes, energy, & catalysis, large molecules, photosynthesis, pH & pKa, clinical correlates of pH, vitamins B12 and Folate, and regulation of carbohydrate metabolism.

Cell Biology studying cells, mitosis, meiosis, the cell cycle, prokaryotes, eukaryotes, & viruses

Chemicals & Human Health basic toxicology, lung toxicology, environmental tobacco smoke & lung development, kidneys & metals

Developmental Biology developmental mechanisms

Human Biology DNA forensics, karyotyping, genetics, blood types, reproduction, sexually transmitted diseases

Immunology, HIV, the ELISA assay, Western blotting analysis and case studies designed for advanced students.

Mendelian Genetics monohybrid cross, dihybrid cross, sex-linked inheritance

Molecular Biology nucleic acids, genetics of prokaryotes, genetics of eukaryotes, recombinant DNA.

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Site Map Biochemistry basic chemistry, metabolism, enzymes, energy, & catalysis, large molecules, photosynthesis, pH & pKa, clinical correlates of pH, vitamins B12 and Folate, and regulation of carbohydrate metabolism.