Why did Maslow place physical needs at the bottom of the pyramid?

The basis of Maslow's theory of motivation is that human beings are motivated by unsatisfied needs, and that certain lower needs need to be satisfied before higher needs can be addressed. Needs at the bottom of the pyramid are basic physical requirements including the need for food, air, water, and sleep.

Explanation:

the suction machine and tubing is the equipment that should be left behind and should be most easily accessible.