Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
I dont know what you mean but if your asking if the forehead is a part of the face as much as the mouth the answer is yes.
Answer:
Measuring heart rate and noting blood pressure is the answer.
Explanation:
To calculate the mass of a single atom, you would need to add up the protons and neutrons of a single atom.
