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Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones
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Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism
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Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of
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Biology, 22.06.2019 20:30
The effect of a hormone on a target cell may be decreased by the presence of
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Which two objects in space formed from the huge disk of ice and debris beyond the outer planets...
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