Respuesta :
Answer:
1. I think immune system but not entirely sure
2. Allergen :))
Explanation:
I know its allergen because I get really bad allergies so it sounds familiar to my life lol
Aidan loves dogs but gets itchy, watery eyes each time he pets one. Looking at this situation it said that Aidan's immune system is reacting to a common allergen.
What do you mean by Allergen?
An allergen may be defined as any substance or particle that triggers the allergic reactions in the body of an organism. It includes pollens, dust mites, molds, danders, and certain foods.
Any allergen particles stimulate the process of allergy. The substance of the allergen does not remain the same for all. Some possess allergies to pollens, some to dust, and some to perfume. But togetherly they are all allergen.
Therefore, Aidan's immune system is reacting to a common allergen.
To learn more about the Immune system, refer to the link:
https://brainly.com/question/1486358