Final answer:
The correct order in Maslow's Hierarchy of Needs is Physiological, Safety and security, Social activity, Ego, and Self-Actualization, representing levels from basic survival to achieving one's full potential.
Step-by-step explanation:
The correct order of levels in Abraham Maslow's Hierarchy of Needs, from the lowest to highest level, is Physiological, Safety & Security, Social activity, Ego, and Self-Actualization. This hierarchy suggests that lower-level basic needs, like the need for food, water, and shelter, must be satisfied before higher-level needs, such as the need for love and belonging (Social activity), esteem (Ego), and finally, the need to achieve one's full potential (Self-Actualization). Maslow later proposed a level beyond Self-Actualization, called Self-Transcendence, which involves the pursuit of meaning beyond the self.