7. A student thinks that the human body only works properly when cells are getting molecules from food and molecules from air. Is the student correct?

Yes, the body only works when cells get molecules from food and molecules from air

Explanation:

The Body works in different ways and it entirely dependant on the physiological or psychological functions of body systems. The body carries out its cells' functions. Food is very vital to the body as it gives energy that is needed for body growth and development. The air and its particle we breath is needed also to ensure the growth and devel. The food contains essential nutrients that is needed by the body to function properly.

aristocracy, timocracy, oligarchy, democracy, theocracy and tyranny

explanation:

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.