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Which type of immunity is transferred from a mother to her baby through breast milk?

A.

Active immunity

B.

Innate immunity

C.

Adaptive immunity

D.

Passive immunity

Answer and Explanation

The Correct Answer is D

Explanation: Passive immunity. Passive immunity is acquired when preformed antibodies are transferred from one individual to another. In this case, the mother's antibodies are transferred to her baby through breast milk, providing temporary protection against certain infections.

Incorrect choices:

a. Active immunity is acquired when the immune system is exposed to a pathogen or vaccination, leading to the production of memory cells and long-term protection.

b. Innate immunity is the body's first line of defense against infections and is not transferred from the mother to the baby but rather present from birth.

c. Adaptive immunity is another term for acquired immunity and involves the production of memory cells after exposure to a specific pathogen or vaccination. It is not transferred through breast milk.


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Related Questions

Correct Answer is A

Explanation

Explanation: Antigens are unique molecules or proteins present on the surface of cells, including pathogens. The immune system can recognize these antigens as "non-self" and mount an immune response to eliminate them while sparing the body's own cells, which display different antigens that are recognized as "self."

Incorrect choices:

b. Recognizing different blood types is relevant for blood transfusions but not a primary mechanism of distinguishing self from non-self by the immune system.

c. Monitoring hormone levels in the body is not directly related to the immune system's ability to distinguish between self and non-self.

d. Cytokines are signaling molecules released by immune cells to regulate the immune response but are not the primary means of distinguishing self from non-self.

Correct Answer is C

Explanation

Explanation:Innate immunity. Innate immunity is the body's first line of defense and provides immediate protection against infections without prior exposure to the pathogen. It includes physical barriers, such as the skin, and various cellular and chemical components.

Incorrect choices:

a. Adaptive immunity is the acquired immunity that develops after exposure to a specific pathogen or vaccination. It takes some time to mount a response and produce antibodies or memory cells.

b. Humoral immunity is a component of adaptive immunity that involves the production of antibodies by B cells to neutralize pathogens.

d. Cell-mediated immunity is another component of adaptive immunity, where T cells directly attack infected or abnormal cells.

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