Significant figures let you, and other people looking at your results know how accurate your measurement is.
Hope this helps :)
Its like weight but not. mass is the amount of matter in a substance.
Respiration aids in replenishing O2 and decrease the CO2 level in the cell. O2 is an important receiver in the oxidative respiration chain in the mitochondria, which is responsible for producing ATP for the cell. ATP can be considered as the “energy currency” of the cell. Many biochemical reactions in the cell requires ATP, including the operations of ion channels, buffer systems, transportation via vesicles, etc. Therefore if there is no O2, the cell cannot produce ATP and will die.
Wait what huh I am confused huh..
The first one is remove heat
Second is add heat