Scientists place great confidence in cell theory, yet it has not been evaluated using every living thing on the planet. What piece of evidence would most likely cause scientists to decide that cell theory would need to be revised?

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

trachea, alveoli, lung capillaries, arteries