Scientific explanation about how your body reacts to getting stung by yellow jackets? What goes on in your body (why your toungue feels funny, welts appear over your body, and why it gets hard to breathe)? What chemicals are involved?

the answer is under explanation.

Explanation:

The body produces a chemical known as histamine, in an effort to protect the body from foreign substances, which is partly what causes the swelling and itching. Taking an over-the-counter antihistamine such as Benadryl right after getting stung can reduce these symptoms.

the answer is d p: cell, q: organ, r: organ system, s: tissue