Final answer:
According to Maslow's hierarchy of needs, the lowest order need is physiological needs, which are the absolute basics required for survival such as food, water, and shelter.
Step-by-step explanation:
According to Abraham Maslow's hierarchy of needs, the lowest order need is physiological needs. At the base of Maslow's pyramid are the fundamental requirements for survival, such as food, water, and shelter. These needs must be met before individuals can concern themselves with higher-level needs, such as safety, love, esteem, and self-actualization. Safety and security are indeed critical needs as well, but they are considered to be the second tier in the hierarchy. Above that are social needs, then ego and esteem needs, and finally self-actualization at the top of the pyramid.