Il in the blanks
is an exaggerated reaction of immune system.
2. Hay fever is also called allergic
3. In allergic persons, first exposure to an allergen does not cause
4. Allergy
are helpful to keep seasonal allergies under control
Answers
Answered by
0
Answer:
- 1. An allergy 2.
Explanation:
l known only two questions of answer
Attachments:
Similar questions