Homework Help: biology

Posted by alex on Sunday, March 4, 2012 at 11:36pm.

Question 18

If a child was allergic to a substance scratched onto their skin, the area turned red and swollen within about 10 minutes. Which of the following would cause these symptoms?
Answer
Release of interleukin-10
Recruitment of B cells
Release of histamine
The presence of flatworms
The presence of dust mites

sorry Ms. Sue

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