Hunting and gathering peoples developed a successful adaptation that promoted generosity, altruism, and sharing while resisting upstarts, aggression, and egoism. This is referred to as .

Egalitarianism

Explanation:

Egalitarianism is a political or social philosophy of equality where everyone is treated equally with respect to basic rights and privileges. This philosophy promotes selfless acts that prioritise the wellbeing of others, generosity and sharing. This system also resist inequalities, aggression, discrimination, and egoism among people.

answer; the values, beliefs, and assumptions about appropriate behavior that members of an organization share;