Answer:
Harmful
Explanation:
When you have an autoimmune disorder, your immune system does not distinguish between healthy tissue and potentially harmful antigens.
Answer:
During the 3rd month the eyes, ears, nose, jaw and neck form along with the arms, legs, fingers, and toes.
Explanation:
He could race multiple cars with different weight added on them and do multiple races (just to be sure) and see if his theory was correct, if not he should right down what he has learned from his experience! :D
-You'll never learn if u don't try ;)
A. Migration (birds migraye to warmer climates during colder months)