Identify the landmark that is unique to the femur.
A. Notch
B. Condyle
C. Trochanter
D. Head
Answer: C. Trochanter
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What is a paracrine secretion?
A. A secretion that is released into the interstitial fluid and transported by the blood B. A secretion that affects the cell that secreted it C. A secretion that affects neighboring cells D. A secretion that is released onto an internal body surface E. A secretion that is released onto the skin
Which solute plays the biggest role in water reabsorption?
A. Sodium ions B. Potassium ions C. Bicarbonate ions D. Calcium ions
Vigorous physical activity causes total metabolic rate to
A. decrease during the exercise and for hours afterwards. B. increase during the exercise and for hours afterwards. C. increase for the duration of the exercise. D. remain constant. E. decrease to conserve energy during the exercise but increase to repay oxygen debt.
Portions of pre-mRNA that do NOT code for parts of a protein are called
A. introns. B. start codons. C. exons. D. stop codons. E. All of these except exons do not code for parts of a protein.