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  1. The immune system review (article) | Khan Academy

    The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract …

  2. Khan Academy | Khan Academy

    Review the immune system, its functions, and how it protects the human body from pathogens in this high school biology resource.

  3. Khan Academy

    Khan Academy ... Khan Academy

  4. Acquired immunity (practice) | Immunity | Khan Academy

    Humoral vs cell mediated immunity, antibodies, b lymphocytes and t lymphocytes, primary and secondary immune response.

  5. Active & Passive immunity (video) | Week 2 | Khan Academy

    Let's explore what active immunity and passive immunity are. Created by Khadijatul Qubra.

  6. The immune system (practice) | Khan Academy

    C The innate immune system produces antibodies and the adaptive immune system does not. D The innate immune system uses lymphocytes while the adaptive immune system does not.

  7. Active and passive immunity (practice) | Khan Academy

    If an unvaccinated person is bitten by a rabid animal, they will receive the vaccine along with an additional substance. What substance could offer immediate and specific immunity against the …

  8. Inflammatory response (video) | Immunology | Khan Academy

    Course: Biology archive > Unit 24 Lesson 5: Immunology Role of phagocytes in innate or nonspecific immunity Types of immune responses: Innate and adaptive, humoral vs. cell …

  9. Lymphoid organs review (article) | Khan Academy

    The parts of the immune system range from physical barriers and substances (innate defenses like skin, saliva etc), to cells and organ systems. Lymphoid organs play a very important role in …

  10. Khan Academy | Khan Academy

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