I would most likely associate this with either pneumonia (acute) or if patient is older some form of COPD; possibly Chronic Bronchitis.
Explanation:
The last one is the answer
hope it's correct
Answer:
it is a neurotoxic protein
Explanation:
It effects how the brain carries out daily essential life functions and hinders the medulla oblongata after long enough exposure. Also causes partial paralysis
Answer:
Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.