The first capillary bed associated with the nephron allows for __________Blank.Multiple Choicethe reabsorbtion of nutrientsthe adjustment of blood pHthe reversal of blood flowthe filtration of blood

The knot of capillaries in a nephron where blood is filtered is called the Blank______.Multiple choice question.collecting ductrenal cortexglomerular capsuleglomerulus

What part of the nephron produces a filtrate of the blood that consists of water and solutes? A. Proximal convoluted tubule B. Distal convoluted tubule C. Collecting ducts D. Glomerulus

1. Unlike an earthworm’s metanephridia, a mammalian nephron(A) is intimately associated with a capillary network.(B) functions in both osmoregulation and excretion.(C) receives filtrate from blood instead of coelomic fluid.(D) has a transport epithelium.2. Which process in the nephron is least selective?(A) filtration(B) reabsorption(C) active transport(D) secretion3. Which of the following animals generally has the lowestvolume of urine production?(A) vampire bat(B) salmon in fresh water(C) marine bony fish(D) freshwater flatwormLevels 3-4: Applying/Analyzing4. The high osmolarity of the renal medulla is maintained bywhich of the following?(A) active transport of salt from the upper region of thedescending limb.(B) the loose packing of juxtamedullary nephrons.(C) diffusion of urea into the collecting duct.(D) diffusion of salt from the descending limb of the loop ofHenle.5. In which of the following species should natural selection favorthe highest proportion of juxtamedullary nephrons?(A) a river otter(B) a mouse species living in a temperate broadleaf forest(C) a mouse species living in a desert(D) a beaver6. African lungfish, which are often found in small, stagnantpools of fresh water, produce urea as a nitrogenous waste. Whatis an advantage of this adaptation?(A) Urea takes less energy to synthesize than ammonia.(B) Small, stagnant pools do not provide enough water to diluteammonia, which is toxic.(C) Urea forms an insoluble precipitate.(D) Urea makes lungfish tissue hypoosmotic to the pool.999

Which one of the following is normally completely reabsorbed by the nephron from the fluid passing through it?Question 15Select one:A.WaterB.SodiumC.UreaD.Glucose

When cells become active in a certain area of the body, the blood flow to the capillaries in that area must __________ to provide more __________.Multiple Choicedecrease; sodiumincrease; O2increase; CO2decrease; O2decrease; ATP