Cellular respiration is the process by which organisms use oxygen to break down food molecules to get energy for cell functions. Which of the following statements best ergia why this process is necessary in plant cells?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.