Some of the air that enters the lung but does not participate in gas exchange is called the
A) Dead space.
B) Void volume.
C) Tidal waste.
D) Residual volume.
Answer: A
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What term is used for the division of cells necessary for sexual reproduction?
A. Meiosis B. Mitosis C. Metastasis D. Cytokinesis
The _________________ _________________ consists of a descending limb and an ascending limb.
Fill in the blank(s) with the appropriate word(s).
Down-regulation of a target cell can occur in response to
A. signals from the posterior pituitary. B. signals from antagonistic hormone products. C. prolonged increase in the level of a hormone. D. prolonged decrease in the level of a hormone.
Which of the following is not a modification resulting from bipedalism?
A. The arches of the feet B. The abducted hallux C. The deep acetabulum D. The broad, curved ilium E. The angled femur