<span>Given that Jason, middle school boy, is well below normal height for his age, it is possible that Human Growth Hormone might be in short supply in his body. </span>Growth hormone<span> (h</span>GH<span>) is also called S</span>omatotropin. <span>This hormone is responsible for the </span><span>stimulation of growth, </span>cell<span> reproduction, and cell regeneration in humans.</span>
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.
Clear-cutting is the most common method of timber removal. Clear-cutting removes all the trees in a given area, often by using large machinery. From an economic standpoint, the benefit of this approach is that humans can harvest maximum timber with minimal energy and cost.