In a human body, which of the following represents the highest level of structural organization?
a an atom in the lung.
b lung tissue
c the lungs
d the respiratory stystem

D. The respiratory stystem

Explanation:

The respiratory system is the structure cited with the highest level of structural organization, because it is formed by many organs, many atoms, cells and molecules.

Various organs interact in the human body, performing a certain function in the body. This set of associated organs forms a system.

The respiratory system is the set of organs responsible for absorbing oxygen from the air by the body and eliminating carbon dioxide removed from cells. It is formed by the airways and the lungs. The organs that make up the airways are: nasal cavities, pharynx, larynx, trachea and bronchi.

answer; the correct answer is desert plants;

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.