Final answer:
The sociopolitical organization complexity sequence is band, tribe, chiefdom, state, increasing from gathering and hunting societies to complex, bureaucratic states.
Step-by-step explanation:
The sequence that describes sociopolitical organization from less complex to more complex is band, tribe, chiefdom, and state. Bands are associated with gathering and hunting, involving a loose affiliation of families with no formal leader. Tribes, which generally arise from horticultural practices, have more stable leadership but still lack the structure of more complex societies. Chiefdoms develop from agricultural surplus and include a centralized hierarchy with a chief at the top. Finally, states are the most complex form of sociopolitical organization, relying on various modes of subsistence, formal bureaucratic institutions, regional trade, military conquest, and often encompass multiethnic territories.