True, organisms take in nitrogen and carry out life processes.
Evolution can be defined as the process of changes in the genetic pool of a population over time. The process of natural selection operates the evolution of any population. Evolution acts upon a whole population instead upon on single individual. A single individual doesn't evolve, instead ratios of the genetic types within a population changes when it is evolving, and eventually, complete evolution occurs.
Hence, the given answer is 'true'.
Because of a tide probably or rain
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higher altitudes have a lower level of oxygen which in turn, trains your lungs to hold and breathe more oxygen which also helps you cycle, run, etc. longer than usual
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the answer is b.The model should show the original stem cell dividing to become a differentiated cell and another stem cell.
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