Slow down or stop all together as enzymes are substances that speed up and help reactions without being used up themselves.
They are like catalysts(inorganic version of enzymes)
Energy in form of ATP.
Hope it helped!
DNA is the molecule that supplies the genetic code for the cell
The definition to parasitism is "the practice of living as a parasite in or on another organism." (Wikipedia). Therfore the answer to this is Ticks live on and drink blood from a cow, because this is the only option where an organism is living directly off another organism.
Hope I was most helpfull to you!
