Answer :<em> That trough time, a specie of animal, plant, bacteria can change.
</em>
<em>
</em>
<em>When a life form reproduces, one of its"babies" may be different from its parents because of genetic mutation. </em>
<em />
I think the respiratory system and circulatory system
20 percent available at the highest tropic level. There is less at the top of the food chain because it has ate things from possibly all areas of the food chain and each level is consuming from lower parts of the chain than it. So with the entire food chain eating on what the top eats there is gonna be less for the top
Compounds of carbon are defined as chemical substances containing carbon. More compounds of carbon exist than any other chemical element except for hydrogen. Organic carbon compounds are far more numerous than inorganic carbon compounds
