Bone plays a central role in the regulation of blood levels of
A) potassium.
B) iron.
C) sulfate.
D) calcium.
E) sodium.
Answer: D
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The special form of cell division that leads to the production of gametes is _______
Fill in the blank(s) with the appropriate word(s).
What is/are the action(s) of the anterior leg muscles?
A. Plantar flexion of the foot and flexion of the toes B. Eversion of the foot C. Dorsiflexion of the foot and extension of the toes D. Abduction of the leg E. Inversion of the foot
Phospholipids are important components of the plasma membrane. What does "B" represent on the diagram?
A. Polar (hydrophilic) region B. Oxygen C. Nonpolar (hydrophobic) region D. Nitrogen E. Phosphorus
The cross-sectional view of the spinal cord reveals white matter on the
A. inside, gray matter on the outside, and a dorsal motor root. B. outside, gray matter on the inside, and a ventral motor root. C. inside, gray matter on the outside, and a dorsal sensory root. D. outside, gray matter on the inside, and a ventral sensory root.