Final answer:
False, a complex hierarchy does not lessen the need for government and an agricultural lifestyle.
Step-by-step explanation:
Based on historical context, the statement is false. A complex hierarchy does not necessarily lessen the need for government and an agricultural lifestyle. In fact, complex hierarchies often require more governance and organizational structures to maintain order. An agricultural lifestyle, which relies on the cultivation of crops and the raising of livestock for sustenance, is independent of the presence or absence of a complex hierarchy.