Which is an immune response?
a)the iris of the eye narrows when the eyes are exposed to bright light.
b)langerhans cells transport harmful substances to white blood cells
c)muscles under the skin contract rapidly to adjust the body's internal temperature.

The correct answer would be b)Langerhans cells transport harmful substances to white blood cells

The response of the body caused by the immune system after being activated by the antigen is termed as an immune response.

It helps the body to fight, destroy and clear the pathogen or antigen from the body.

Different types of cells are used in such response some of which are B-cells, T-cells, antigen-presenting cells, macrophages et cetera.

Langerhans cells are the antigen presenting cells present in the skin. They capture, uptake and process the microbial antigen and present them to T-cells (a sub-type of white blood cells).

T-cells then results in the immune response of the body which helps in getting rid of the pathogen.

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a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves