Explain the role of the afferent and efferent arterioles in maintaining the high hydrostatic pressure within the glomerulus.
a) the afferent arteriole has larger diameter than the efferent arteriole
b) the afferent arteriole has a smaller diameter than the efferent arteriole
a) the afferent arteriole has larger diameter than the efferent arteriole
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List and briefly describe the components of the lymphatic system
When a bird ruffles its feathers in response to heat stress it
a. permits convective currents to carry heat away from the body surface. b. permits exchange of air with 100% humidity for air with lower humidity, enabling evaporative cooling to occur. c. both of these. d. neither of these.
When the pancreas does not produce enough insulin or the cells do not respond to the effects of the insulin that is produced:
A) the cells will metabolize oxygen and function normally. B) glucose levels in the blood and urine will be elevated. C) serum glucose levels will fall and brain damage may occur. D) the body will stop making glucose as a protective mechanism.
What is required for filtration to occur?
A) ATP B) solute pumps C) pressure gradient D) protein carriers