LadyofHats CK-12 Foundation. (2016, August 15). Figure 5: Photosynthesis and cellular respiration . In Brainard, J., and Henderson, R., CK-12s College Human Biology FlexBook® (Section 4.9). CK-12 Foundation. ck12.org book ck-12-college-human-biology section 4.9 1.Definition of Life Overall, deep and extensive collaborations between biological enti