Explain three basic requirement of respiration?

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

What would be the most likely result if the ph of the stomach were increased to 5

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic