Question

Which of the following best describe adaptive immunity?

a) The body barrier defenses such as mucous membrane and secretion.

b) The initiation of internal defenses such as phagocytes and natural killer cells

c) the response to specific traits of a specific pathogens

d) the initiation of the inflammatory response

Answer 1

Adaptive immunity is a slower but more specific immune response than innate immunity. It involves T cells, B cells, and antibodies to target and destroy specific pathogens. Memory cells are produced to provide long-term immunity.

Step-by-step explanation:

The adaptive immune response is a slower-acting, longer-lasting, and more specific response than the innate response. It requires information from the innate immune system to function. Antigen-presenting cells (APCs) display antigens on MHC molecules to naïve T cells. In response, the T cells differentiate and proliferate, becoming TH cells or Tc cells. TH cells stimulate B cells to produce antibodies, whereas Tc cells destroy infected or cancerous cells. Memory cells are also produced and provide long-term immunity.