What structure does the human lung have that increases the surface area of the lungs?
a. bron...
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Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%
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When the solution concentration on the outside of a cell is greater than thesolution concentrate on the inside of the cell, what type of solution is the cellwithin?
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Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?
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