Why should we use the subtractive techniques to make both the motor and sensory conduction velocity calculation

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

{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.

Whats one way that rocks do not follow the typical rock cycle pathway?