State how energy in carbon compounds enters most biological communities

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

Long term exposure to waves can cause sunburns and skin cancer.

Easy 6th grade work! 100 points! i need fast! compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.