__________ is the evolutionary trend that describes the concentration of nervous tissue and sense organs at one end of the body
Fill in the blank with the correct word.
Answer: Cephalization
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If lung compliance decreases, then
A) Inhalation requires more energy. B) Inhalation requires less energy. C) Exhalation requires more energy. D) Exhalation requires less energy.
When the pH of the extracellular fluid drops, the kidneys
A) excrete more hydrogen ions. B) excrete more bicarbonate ions. C) reabsorb bicarbonate ions. D) excrete more hydrogen ions and excrete more bicarbonate ions. E) excrete more hydrogen ions and reabsorb bicarbonate ions.
Average tidal volume is approximately
A. 2900 mL. B. 1500 mL. C. 1000 mL. D. 500 mL.
Calcitonin
A. stimulates bone resorption (breakdown). B. is synthesized by the skin, liver, and kidneys. C. increases blood calcium. D. stimulates osteoblast activity.