The Major Reason Usually Cited for Declines in Mortality at the Turn

question 2

Multiple Choice

The major reason usually cited for declines in mortality at the turn of the century is

• A) medical intervention
• B) improved nutrition
• C) improved hygiene
• D) increased natural immunity
• E) rising standard of living

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Definitions:

B-cells

Immune cells that produce antibodies and are an essential part of the adaptive immune response.

Antibodies

Proteins generated by the immune system that recognize and bind to specific foreign particles, such as bacteria and viruses, to help protect the body against infections.

Secondary Response

The immune system's enhanced reaction to a previously encountered antigen, characterized by a more rapid and potent response.

Memory Response

Memory response refers to the immune system's ability to quickly recognize and react to previously encountered pathogens, providing faster and more effective protection.