2 to drddfdeee shark week say hey to ask so we so so will ask week
they need energy because there cells need to reproduce
I believe the closest related is speices and class
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.
I believe the answer is C) is different lengths of time for different types of cells.