His immune system is using the first line of defense. His body is using purging methods that is caused by irritation of the hairs in his nose. This defense system<span> uses physical and chemical barriers that are prepared to defend the body from infection.</span>
Carbohydrates changed into sugar
proteins broken down to amino acids
fats converted to fatty acids
nutrients carried to cells
Answer:
A.messages that are sent from the brain to body parts
