Biology, 01.07.2019 18:30, yurlgurllmay
Americans spend up to $100 billion annually for bottled water (41 billion gallons). the only beverages with higher sales are carbonated soft drinks. recent news stories have highlighted the fact that most bottled water comes from municipal water supplies (the same source as your tap water), although it may undergo an extra purification step called reverse osmosis. imagine two tanks that are separated by a membrane that is permeable to water, but not to the dissolved minerals present in the water. tank a contains tap water and tank b contains the purified water. in the reverse osmosis process, pressure is applied to the tap water tank to force the water molecules across the membrane into the pure water tank. suppose that while the reverse osmosis system is running tank b becomes contaminated with salt water such that it ends up with a higher salt concentration than tank a. what would happen if the reverse osmosis system was turned off?
Answers: 2
Biology, 21.06.2019 14:30, goonnation9311
Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.
Answers: 1
Biology, 21.06.2019 18:30, rebeccacruzz2017
This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is
Answers: 3
Biology, 22.06.2019 01:30, ineedhelp2285
Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?
Answers: 1
Americans spend up to $100 billion annually for bottled water (41 billion gallons). the only beverag...
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