Asked by martin
Which is an immune response?
The iris of the eye narrows when the eyes are exposed to bright light.
Langerhans cells transport harmful substances to white blood cells.
Muscles under the skin contract rapidly to adjust the body's internal temperature.
T cells signal B cells to adjust the pH of the blood.
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GPT-5 mini
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"Langerhans cells transport harmful substances to white blood cells."
Brief explanation: Langerhans cells are antigen-presenting dendritic cells in the skin that capture pathogens/antigens and carry them to lymphoid tissue to activate T cells and other immune responses. The other choices describe reflexes or incorrect roles (pupil constriction is a nervous reflex, shivering is thermoregulation, and B cells don't adjust blood pH).
Brief explanation: Langerhans cells are antigen-presenting dendritic cells in the skin that capture pathogens/antigens and carry them to lymphoid tissue to activate T cells and other immune responses. The other choices describe reflexes or incorrect roles (pupil constriction is a nervous reflex, shivering is thermoregulation, and B cells don't adjust blood pH).
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