The functional units of the kidneys are:
A) glomeruli. B) renal sinuses. C) renal pyramids. D) nephrons.
Answer: D
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By following the anterior border of the masseter to the inferior margin of the mandible you can palpate this artery
A) mandibular B) facial C) temporal D) carotid
Two compartments are separated by a membrane that is permeable to water and urea. Compartment I contains 1M NaCl. Compartment II contains 2M urea. Which of the following is a correct statement of their relationship based on the initial conditions?
A) Compartment I is isosmotic to Compartment II. B) Compartment I is hyposmotic to Compartment II. C) Compartment I is hypertonic to Compartment II. D) Both A and C
The ________ is a "housekeeping function" that sweeps food remnants and bacteria out of the upper GI tract and into the large intestine.
Fill in the blank(s) with the appropriate word(s).
The shape of the DNA molecule is a(n)
A. single strand. B. inverted T. C. globule. D. double helix.