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It turns out that there are at three simple machines found in a bicycle: lever, pulley, and wheel-and-axle. There are three more kinds of simple machines: an inclined plane, a wedge and a screw. When a machine is comprised of more than one type of simple machine, it is called a compound machine.
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The entire ecosystem.
It is important because any waste in a lake/water system can be harmful to the wild life. An example is trash like plastic bottles, cans, plastic bags, and oil.
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Answer:
Thus, nitrogen undergoes many different transformations in the ecosystem, changing from one form to another as organisms use it for growth and, in some cases, energy. The major transformations of nitrogen are nitrogen fixation, nitrification, denitrification, anammox, and ammonification
Explanation:
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The correct answer is organ system level of organization.
