Answer:
B. The prefixes chemo- and photo-: define the electron source
Explanation:
The prefix chemo is related to <u>chemical/drug</u> and photo is related to<u> light</u>. This can be proved by analysing the following examples:
Chemotherapy = therapy with chemicals
Phototherapy = therapy with light
I believe it is azotemia.
This is a law because it is based on observations (Newton's Third Law)
Temperature is a number that is related to the average kinetic energy of the molecules of a substance. If temperature is measured in Kelvin degrees, then this number is directly proportional to the average kinetic energy of the molecules. Heat is a measurement of the total energy in a substance.