What are the advantages of an electromagnet?

The advantage of using an electromagnet over a permanent magnet is that you can control its magnetic field. You turn on and off the device's magnetic field, and with many electromagnets, you can even control the power of the magnetic field.

Explanation:

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.