Discuss the effect on organisms that perform cellular respiration and the resulting change in relative concentrations of gasses in the atmosphere if many photosynthetic organisms are removed from an ecosystem.
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Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

The chemical form of energy that is useable by the cell to do work