Absorption is the correct answer
<span>aerobic respiration requires oxygen.</span>
Enzymes are biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. The vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
Modern Prokaryotes are sing celled organisms without complex organelles.
Hope I helped :-)
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some one celled organisms reproduces by binary fission which is a process of cell division. The answer is 4.
