Which organ in the urinary system produces urine?
What will be an ideal response?
ureter
kidney
urinary bladder
urethra
kidney
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In the ankle the largest tarsal bone is the
A) calcaneus. B) navicular bone. C) cuboid bone. D) talus. E) medial cuneiform bone.
Your observations of cooling and warming the beating frog heart include which of the following?
A) Heart rate is very sensitive to temperature: it slows with cooling and beats faster with warming. B) Cooling the heart has no effect on heart rate. C) Warming the heart has no effect on heart rate.
In addition to a drop in blood calcium concentration, a symptom of hypoparathyroidism is
A. increased PTH secretion. B. kidney stones. C. a rise in vitamin D concentration. D. muscle cramps.
Cellular immunity uses MHC-I and MHC-II, but humoral immunity uses only MHC-II.
Answer the following statement true (T) or false (F)