The first thing you should do is calm down.
Answer:
most people carry harmful bacteria and can transport them to food touching your nose, hair can spread bacteria and cause contamination
Answer:The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
Answer:
Hair grows out of a tiny pore in the skin called a Follicle.
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This is because you have had it before therefore your body knows how to get rid of it,you have also become more amuned to it.
we are able to get rid of a certain illness sickness or even pathogen faster the second time you get it due to the fact our bodies have had it before which mean they have experienced how to get rid of it