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  1. www.khanacademy.orgKhan Academy | Free Online Courses, Lessons & Practice

    Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

    • Login

      Login - Khan Academy | Free Online Courses, Lessons &...

    • Math

      This Grade 7 Math course, aligned with Texas TEKS standards,...

    • SAT Prep

      Students will continue to be able to use Khan Academy’s...

    • Sign Up

      Sign Up - Khan Academy | Free Online Courses, Lessons &...

    • Computer Programming

      Math: Get ready courses; Get ready for 3rd grade; Get ready...

    • Algebra 1

      The Algebra 1 course, often taught in the 9th grade, covers...

    • Entrar

      Venha para a Khan Academy e aprenda com a gente Faça o login...

    • Science

      Learn high school biology using videos, articles, and...

  2. www.youtube.com › watchIntroduction to Biology: Crash Course Biology #1 - YouTube

    The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this episode of Crash Course Biology, you’ll learn how all of life is...

  3. www.khanacademy.org › scienceScience - Khan Academy

    Learn high school biology using videos, articles, and TEKS-aligned practice. Explore the fundamentals of cells, organism growth and development, photosynthesis and cellular respiration, molecular and classical genetics, natural selection and evolution, biodiversity and human impacts, and ecology.

  4. www.ibiology.orgiBiology | Free Biology Videos, Lectures, and Online Courses

    Learn from world class scientists with 600+ biology videos including lectures, talks, animations & professional development courses.

  5. ocw.mit.edu › courses › 7-01sc-fundamentals-of-biology-fall-2011Fundamentals of Biology - MIT OpenCourseWare

    Lecture Videos by MIT faculty. Learning activities, including Interactive Concept Quizzes , designed to reinforce main concepts from lectures. Problem Sets you do on your own and check your answers against the Solutions when you’re done.

  6. oli.cmu.edu › courses › introduction-to-biology-open-freeIntroduction to Biology — Open & Free – OLI

    Introduction to Biology — Open & Free. An approach to Biology that helps students understand themselves and their environment. Learn about Open & Free OLI courses by visiting the “Open & Free features” tab below. ENTER OPEN & FREE COURSE. Categories: All Course Materials (independent learners), Life Sciences (independent learners) Description.

  7. thecrashcourse.com › topic › biologyBiology - Crash Course

    Crash Course Biology Preview. In 50 episodes, Dr. Sammy Ramsey will teach you biology, the science of life. This course is based on an introductory-level college and AP Biology curriculum.