What is the major function of the lymphatic system?
A) return leaked fluids back to the cardiovascular system
B) produce offspring
C) eliminate nitrogen-containing metabolic wastes from the body
D) break down food into absorbable units
E) secrete hormones to regulate body processes such as growth and reproduction
A
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Peripheral chemoreceptors
A. are located in the aortic and carotid bodies. B. are not sensitive to changes in pH of the blood. C. are not sensitive to CO2 or H+ levels. D. are sensitive to small changes in O2 levels in the blood. E. monitor blood pressure.
In which of the following sequences does PO2 progressively decrease?
A. Body tissue, aorta, alveolar air B. Blood in aorta, atmospheric air, body tissues C. Body tissue, arterial blood, alveolar air D. Body tissue, alveolar air, arterial blood E. Atmospheric air, blood in aorta, body tissues
Fusion of the male and female pronuclei
A. occurs before ovulation. B. results in an oocyte forming. C. results in a haploid cell forming. D. restores the diploid number of chromosomes. E. results in a total of 23 chromosomes.
Which of the following does not move substances across capillary walls?
A. Reabsorption B. Diffusion C. Filtration D. Group transport E. Transcytosis