Question

The ______ ________ is a complex cascade of events that occurs following activation by an invading substance.

a) Digestive process

b) Endocrine system

c) Immune response

d) Respiratory function

Answer 1

The immune response is a complex cascade of events that occurs following activation by an invading substance. It involves cellular and molecular attacks such as inflammation, phagocytosis, cytokine release, destruction by NK cells, and/or activation of the complement system.

Step-by-step explanation:

The immune response is a complex cascade of events that occurs following activation by an invading substance. It is a part of the immune system, which comprises both innate and adaptive immune responses. The innate immune response occurs naturally because of genetic factors or physiology and serves as a first responder to pathogenic threats. It involves cellular and molecular attacks such as inflammation, phagocytosis, cytokine release, destruction by NK cells, and/or activation of the complement system.