D. Organisms have cells with different shapes and functions.
For example if you were to have 40 birds and only 5 worms then the worms would be wiped out due too the high amount of birds so its good to keep the amount balanced via a food chain so in summary overpopulation would have a negative affect on the system
I believe it is temperature or rainfall. All of the factors are improtant but temperature comes first, cuz the temperature can also determine the air, and soil doesn't make a difference. Longitude doesn't have to do with an ecosystem.
The correct answer is B since the organism is just copying itself.
