Most chemical reactions consist of sequences of two or more simpler reactions.
a. true
b. false

i think that d. wind is the answer.   i missed the question when i answered a. currents.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

i need an image of the diagram