I think number 8 is a. or d.
Our immune system defends us from familiar or weak germs.
Answer:
The first one is Increased stomach acid
The second I'm not really sure
Explanation:
The force produced in a single maximum effort to work
Answer:
"Whenever our son eats shellfish or derivatives thereof, he will present hives." Shellfish allergies are a response of the immune system to the proteins present in some marine animals (shells, prawns, crabs, lobsters, squid, among golds). we should have a lot of information about it, every time we are faced with this type of allergen, the allergic reaction will be much more serious that can lead to an obstruction of the airway.