Which statement supports the main ideas of the law of conservation of mass?

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

The smallest parts of these that retain their original properties are called

Which of the following terms describes all of the non-living components of an ecosystem