Cid rain throughout the northeast united states has lowered the ph of many ponds and lakes. the lowered ph will eventually result in the death of many aquatic animals. the table shows the ph tolerance levels for water that supports a variety of nine animal species.

what is the mathematical range of the minimum ph levels that supports life for the nine species?
a) 2.5
b) 4.5
c) 5.5
d) 7

The answer is A (2.5)

Explanation:

I looked the question up for you but since there is not a chart I can not give you an accurate explanation. Good luck !

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.