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

    Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more. It’s all free for learners and teachers.

    • 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.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.

  3. sciencenotes.org › free-biology-notes-worksheets-and-quizzesBiology Worksheets, Notes, and Quizzes (PDF and PNG)

    14 Μαρ 2022 · This is a collection of free biology worksheets, notes, handouts, slides, study guides and quizzes. Most content targets high school, AP biology, genetics, anatomy/physiology, immunology, and biology 101 and 102 in college. There is also biochemistry and physics for biologists.

  4. 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.

  5. ocw.mit.edu › courses › 7-016-introductory-biology-fall-2018Lecture Videos | Introductory Biology - MIT OpenCourseWare

    This page contains all available video captures for the MIT course 7.016 Introductory Biology of Fall 2018.

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

    Define biology. List the characteristics of life and apply them to identify an item as biotic (living) or abiotic (nonliving). Describe and identify the levels of biological organization from molecules to the biosphere, noting the interrelationships between levels.

  7. ocw.mit.edu › courses › 7-013-introductory-biology-spring-2013Introductory Biology | Biology - Biology | MIT OpenCourseWare

    The list below contains optional readings and videos for each unit of the course. Biochemistry. Genetics. Molecular Biology. Cell Biology. Recombinant DNA Technology. This section contains optional study materials, as well as additional readings and videos, for extra enrichment.