What is true of a mixture A) it is always thicker than the two chemicals that go into it
B ) it retains the properties of the substances that make it up
C ) it can never be separated into its constituent substance
D ) it is produced through chemical reactions

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.