Biology, 02.08.2019 10:00 Greghairston4839
An old iron battery was discarded in this meadow. as time passes, the iron begins to undergo a chemical change when the iron reacts with the oxygen in the air. the evidence that a chemical change has occurred in this example is that a) rusting releases a gas. b) rusting produces water. c) rusting produces a new substance. d) none of these changes are occurring. i need a correct answer plz!
Answers: 1
Biology, 22.06.2019 05:00
Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior
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Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
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Biology, 22.06.2019 12:10
Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species
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An old iron battery was discarded in this meadow. as time passes, the iron begins to undergo a chemi...
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