Answer:
B.
Explanation:
An allergic response is a hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in everyone.
Answer:
Humans
Explanation:
People just throw trash where ever that want and don't think about the animals and pretty soon we are going to die because of other people who don't care about pollution
When you eat a lot of food usually after a holiday or something
Vaccines saves lives, Over the years, vaccines have prevented countless cases of disease and disability, and have saved millions of lives.
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