The limb of the nephron loop is relatively impermeable to solutes but freely permeable to water. The limb of the loop is permeable to solutes, but not to water; its segment, in particular, has an active pump that moves salt (NaCl) out of the filtrate into the medullary interstitial fluid. The medullary regions of the collecting ducts are permeable to , a small solute that enhances the osmolality of the medullary interstitial fluid. The acts as a countercurrent exchanger to maintain the osmotic gradient while delivering a nutrient blood supply. The purpose of this mechanism is to maintain a high solute content in the of the medullary pyramids of about mOsm/L. The permeability of the distal portion of the DCT and the collecting ducts to water is controlled by the hormone .

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

wegner's theory did not explain how the continents could move

explanation:

i think the answer is c hope this

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.