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Carbon 14 Dating 1 Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the s…

Seeing how an inhibitor can "compete" for an enzyme with the intended substrate. Biology Life is beautiful! From atoms to cells, from genes…

High school biology The digestive and excretory systems Topic: Science Learn about all the sciences, from physics, chemistry and biology, t…

How myosin and actin interact to produce mechanical force. Biology Life is beautiful! From atoms to cells, from genes to proteins, from pop…

The definition of stereoisomers, enantiomers, and chirality centers. How to calculate the number of possible stereoisomers for a structure …

How plants can regulate processes like flowering based on day length (photoperiod). Biology Life is beautiful! From atoms to cells, from ge…

Molecular structure of RNA. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology…

Understanding the structure of plant cell walls. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations t…

Ozone layer and eukaryotes show up in the Proterozoic eon. Great oxygenation event (oxygen catastrophe). Biology Life is beautiful! From at…

An overview of the question of how life first arose on Earth. Biology Life is beautiful! From atoms to cells, from genes to proteins, from …

Introduction to viruses. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is…

Overview of gene regulation in the Lac operon. Discussion of CAP, cAMP, lac repressor and allolactose in regulation of lac operon. Biology …

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Biology Life is beautiful! From atoms to ce…

Refraction of Seismic Waves Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn abo…

Lifecycle of Massive Stars Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn abou…