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Learn about fermentation and anaerobic respiration, including how cells extract energy from glucose without oxygen.

Hi Stephanie, The class code for a class can be found on the class page, under the 'students' tab: Class codes are typically a mix of uppercase letters and numbers, but it does appear that if you input the letters in as lowercase the student will still get added to the class.

Korzystasz z Khan Academy w języku polskim? Przekaż 1% podatku lub darowiznę Fundacji Edukacja dla Przyszłości, która zajmuje się tłumaczeniem Khan Academy na język polski, edukacjaprzyszlosci.pl. Przekaż darowiznę dla Khan Academy Foundation, wesprzyj polskie tłumaczenie przekazując datek na edukacjaprzyszlosci.pl, lub wesprzyj …

Sep 20, 2024 · Mastery Challenges are a way for you to review and practice skills you’ve previously learned in a course. It's also another way for you to earn mastery levels, in addition to taking Unit Tests and Course Challenges.

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Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; Basic geometry and measurement

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