AP BIOLOGY

Detailed explanation-1: -This innate immune response mostly involves immune cells and proteins to nonspecifically recognize and eliminate any pathogen that enters the body. Phagocytosis is a crucial phenomenon of the innate immune system that utilizes a special type of immune cells called phagocytes.

Detailed explanation-2: -Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

Detailed explanation-3: -Innate immune cells recognize certain molecules found on many pathogens. These cells also react to signaling molecules released by the body in response to infection. Through these actions, innate immune cells quickly begin fighting an infection. This response results in inflammation.

Detailed explanation-4: -Nonspecific protective mechanisms repel all microorganisms equally, while the specific immune responses are tailored to particular types of invaders. Both systems work together to thwart organisms from entering and proliferating within the body.

Detailed explanation-5: -Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN.