When lung volume decreases, lung pressure decreases
Indicate whether the statement is true or false.
Answer: False.
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In response to increased levels of aldosterone, the kidneys produce
A) a larger volume of urine. B) urine with a higher concentration of sodium ions. C) urine with a lower concentration of potassium ions. D) urine with a lower concentration of sodium ions. E) urine with less glucose.
During aging, muscle is often replaced by dense connective tissue, a process called _________
Fill in the blank with correct word.
Which of the following is NOT a function of the digestive system?
A. Movement of nutrients to the cells B. Elimination of indigestible wastes C. Absorption of nutrient molecules D. Ingestion of food
Distinguishing the pitch of sounds is possible because:
A. different frequencies of sounds make the eardrum vibrate with different amplitudes. B. different frequencies of sounds stimulate different regions of the basilar membrane in the cochlear duct. C. different frequencies of sounds cause different kinds of action potentials in neurons in the auditory nerve. D. different frequencies of sounds cause different frequencies of action potentials in neurons in the auditory nerve. E. there are many different types of receptors for sound, each of which responds to a single frequency.