If 159,000 kcal of energy is available in the producer tropic level how much kcal of energy is available for the secondary consumers

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

No plagiarizing ! 6th grade work! easy and 100 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.

What problem would a person most likely have if her kidney did not work correctly?