Which of the following is an effect of aging on the respiratory system?
A. Gas exchange in the lungs remains unchanged.
B. Minute ventilation rates increase.
C. Residual volume increases.
D. Vital capacity is unchanged.
Answer: C
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Parathyroid hormone does all of the following except
A) stimulate osteoclast activity. B) inhibit osteoblast activity. C) build up bone. D) stimulate the formation and secretion of calcitriol at the kidneys. E) enhance the reabsorption of calcium at the kidneys.
The skin may turn orange as a result of ________ buildup.
A) biliverdin B) keratin C) carotene D) melanin E) bilirubin
Which term means that a person posses two different alleles at a particular locus?
A. Homozygous B. Karyotype C. Diploid D. Heterozygous E. Homologous
The second neuron of the two-neuron chain in the ANS is called the ________ neuron
A) final common B) intermediary C) postganglionic D) preganglionic