He burning of coal, a fossil fuel, produces water and carbon dioxide. how is this similar to cellular respiration? a) both require high temperatures. b) heat energy is lost in both cases. c) both involve the breakdown of carbon compounds. d) some amount of carbon remains un-oxidized in both cases.

C. Both involve the breakdown of carbon compounds.

a- all cells come from pre-existing cells

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.