Natural changed to the ecosystem relate to environmental shock that occur naturally. Natural changes include floods, volcanic activity, hurricanes, etc. They can be destructive, but they also have advantages. Floods have the contribution of nutrients to the soil which was lacking. It can also relocate fishes and organisms living in bodies of water which improves the ecosystem.
Plant cells have all of these, but only a plant cell has a chloroplast.
Answer:
I think it might be the last response, since it takes about what some say, 550 million years...
It might be wrong... But take it into consideration that it might be the right answer.
<em>option c </em>
<em>option c the amount of grass a pasture can </em><em>sustain</em>
<em>Stocking rate is a management decision and one of the most important grazing management decisions a rancher or land manager </em><em>makes </em>
