An example of an endothermic process is Boiling.
An endothermic reaction is any chemical reaction that absorbs heat from its environment. Boiling is a course by which a liquid changes into a vapor when it is heated to its boiling point. The shift from a liquid phase to a gaseous phase happens when the vapor pressure of the liquid is of the same level to the atmospheric pressure exerted on the liquid.
It allows the scientist to determine the effect of the changed variable , it also allows samples and organisms to be tested under comfortable conditions
Answer:
Proteins can be catalysts which help to reduce the energy used in a chemical reaction or speed it up. Proteins can help carry oxygen throughout the body in the form of hemoglobin
Explanation:
Upper arm/elbows front side
