When cancer metastasizes, that means it does what? changes the structure of a cell

spreads through the body

clots the blood

dies off

Jim and phil are changing the oil in jim’s car. jim is trying to remember all the actions involved in changing the oil. phil is trying to remember the first time he ever changed the oil in his car. jim is trying to recall a memory and phil is trying to recall a(n) memory.

How can a person  best  reduce the risk of injuries on the road?  

Why would a smoker tend to inhale more deeply and smoke more cigarettes when he or she switches to low nicotine cigarettes