Which statement about cellular respiration is true?
a. it produces oxygen
b. it requires water
c. it is used by every living cell
d. it converts energy to
which statement about cellular respiration is true?
a. it produces oxygen
b. it requires water
c. it is used by every living cell
d. it converts energy to food

Out of all of the statements, it is true that cellular respiration is used by every living cell.

C. it is used by every living cell

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.