Hypoxia multiple choice occurs when oxygen concentrations fall below 2 mg per ml can result in the death of sessile organisms occurs when respiration rates exceed oxygen replenishment via circulation occurs when oxygen concentrations fall below 2 mg per ml, can result in the death of sessile organisms, and occurs when respiration rates exceed oxygen replenishment via circulation none of these is correct.

occurs when oxygen concentrations fall below 2 mg per mL, can result in the death of sessile organisms, occurs when respiration rates exceed oxygen replenishment via circulation.

Explanation:

Hypoxia is a dangerous medical condition that refers to the decrease in oxygen levels to an extent that there is a serious deficiency or shortage in the  oxygen supply to the tissues.  Here, the term circulation refers to the blood circulation and this blood circulation acts as a transporter for oxygen. The term oxygen concentration means concentration of oxygen in blood. Also, death of sessile organisms is caused by lack of oxygen supply and therefore, Hypoxia causes it.