The three man limitations of models are the following. Models lose so they are simple enough to use. Models use- to describe what's happens in the world. Finally models can not always include all of the of the real system that they represent.

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae