Explain an atom in terms of subatomic particles

Q1. Though only a small amount of nutrients are absorbed, precise water absorption is an important function of the?

Q2. The many species of tree frogs that inhabit forests in the eastern U.S. maintain their genetic isolation from other species by several mechanisms, including “singing” slightly different songs. Which kind of isolating mechanism does this represent?

Q3. Explain an atom in terms of subatomic particles. Be sure to explain the size, charge, and location of each particle and how the number of each of those particles affects the atom.

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