Environmental scientists are using GPS ( It is effective but expensive) aerial monitoring (Quick but not the easiest), RFID tags, (mostly for long-term monitoring) and hidden cameras are used to study polar bear behavior without interruption to their environment.
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All living organisms share several key characteristics: order, sensitivity/ response to their environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
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i think it is c on edginuidty
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Answer:
A mountinrange
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because the plates are moving away from each other