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Learn about the nitrogen cycle, its importance to ecosystems, and how it works.
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The carbon cycle (article) | Khan Academy
Learn about the carbon cycle and how carbon moves between the biosphere and the geosphere.
The nitrogen cycle (video) | Khan Academy
The nitrogen cycle is a crucial process that converts atmospheric nitrogen into a form that plants and other organisms can use. This process, known as nitrogen fixation, is primarily carried out by bacteria. Nitrogen is essential for life, forming a key component in amino acids, ATP, and DNA.
可汗学院 - Khan Academy
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Explanation of the Calvin cycle in photosynthesis, including its stages and importance in converting carbon dioxide into glucose.
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Learn about carbohydrates, their structure, function, and types on Khan Academy.
Khan Academy
Khan Academy provides an overview of the steps involved in cellular respiration, including glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation.
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Oups. Quelque chose a mal tourné. S'il vous plaît, veuillez réessayer. Oups, on dirait qu'il y a eu une erreur ! Vous devez actualiser.Si le problème persiste, dites-nous.
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