Cardiac muscle cells do not need ________ to contract.
A) sodium
B) calcium
C) potassium
D) ATP
E) nervous stimulation
E) nervous stimulation
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New research has shown that urination is actually controlled by the ________
A) Bladder B) Pons C) Kidney D) Ureters
In a 5% NaCl solution,
A) this means there are 5 grams of sodium chloride for every 100 mL of water. B) this means there are 5 grams of sodium chloride for every 100 mL of water and there are 5 grams of sodium chloride for every 100 mL of total solution. C) this means there are 5 grams of sodium chloride for every 100 mL of total solution. D) this means there are 5 grams of sodium chloride for every 100 mL of total solution and the solute is water. E) the solute is water.
Both centrioles of the spermatid are found in the ________ of the mature sperm.
A) neck B) head C) tail D) middle piece E) acrosome
The female pubic arch is usually 90 degrees or less.
Answer the following statement true (T) or false (F)