1) Osmosis is diffusion of .... a) carbon dioxide b) water c) oxygen d) nitrogen 2) Enzymes can be affected by a) temperature b) pH c) size d) time 3) High temperatures can cause a) Hypothermia b) Loss of limbs c) Heat stoke d) Frostbite 4) Kidneys reabsorb all of the........ from our blood a) water b) urea c) sugar d) salt 5) Concentration of urine is controlled by which hormone? a) ADH b) pituitary c) insulin d) progesterone 6) Which of the following suppresses ADH production? a) Ecstacy b) Alcohol c) Water d) Cocaine

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