Helper t cells - PowerPoint PPT Presentation

Defenses Against Disease

Defenses Against Disease. If pathogens are everywhere, why aren’t you sick all of the time?. When you do get sick, what keeps pathogens from multiplying until they take over your body?. The Answer. Your body has a number of defenses against infection.

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690 views • 38 slides

Specific Defenses

Specific Defenses. The Immune System. Definitions. Innate (nonspecific) Defenses against any pathogen Immunity Specific antibody and lymphocyte response to an antigen Antigen (Ag) A substances that causes the body to produce specific

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512 views • 29 slides

Warm Up

Warm Up. Using your notes and diagrams on prokaryotic and eukaryotic cells determine which organelles are present in which type of cell. Place a check mark only if the organelle is present in the cell. Lysogenic Cycle.

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326 views • 15 slides

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