Explain the progression from the family to the village and the city [polis] as forms of association; if “nature makes nothing in vain,” then what purpose, or function, does the village serve that the...

Explain the progression from the family to the village and the city [polis] as forms of association; if “nature makes nothing in vain,” then what purpose, or function, does the village serve that the family cannot and, conversely, what function does the city serve that the village cannot?And, in what sense is man a “political animal”? (Using Aristotle Politics Book 1)