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Which is a closed system. a tree, a human ,a clock , or a car
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Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)
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How are gene and protein sequences used to classify organisms?
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How will you manage your time to accomplish the necessary tasks both on the job and at home?
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Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
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Which is a closed system. a tree, a human ,a clock , or a car...
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