Answer:
allergic reaction
Explanation:
Difficulty breathing and getting swollen is a sign of allergic reaction
<span>The metabolic activity of a specific region of the living rat brain can be revealed by measurement of Fos protein concentration.
c-Fos is a proto-oncogene that is the homolog of the retroviral oncogene v-fos. It was first discovered in rat fibroblasts as the transforming gene of the FBJ MSV.</span>
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Some types of streams: bradied channel stream, creek, River, Straight Channel Stream, and Meandering Channel Stream.
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