Click and drag each description into the appropriate category to identify whether it is a factor that contributes to muscle fatigue, muscle endurance, or neither. 1. Muscular density of blood capillaries
2. Depletion of acetylcholine
3. Uncontrolled leakage of calcium from the SR
4. Depletion of ATP
5. A muscle's supply of glycogen
6. A muscle's supply of myoglobin
7. Accumulation of potassium in the extracellular fluid
8. The size of the motor unit a muscle belongs to
A. Fatigue
B. Endurance
C. Neither

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective