Social studies !
explain how early humans made vast improvements and changes to how they found/hunted/gathered food. explain.

Hunter-gatherers were prehistoric nomadic groups that harnessed the use of fire, developed intricate knowledge of plant life and refined technology for hunting and domestic purposes as they spread from Africa to Asia, Europe and beyond. From African hominins of 2 million years ago to modern-day Homo sapiens, the evolution of humans can be traced through what the hunter-gatherers left behind—tools and settlements that teach us about the hunter-gatherer diet and way of life of early humans. Although hunting and gathering societies largely died out with the onset of the Neolithic Revolution, hunter-gatherer communities still endure in a few parts of the world.

I hope this helps

It goes back all the way to the first two humans Adam and Eve. (I don't believe in the theory of evolution)

Since they came with the first farming system after they were kicked out of the Garden of Eden.

As humans, with our unique intelligence that separates us from all other mammals, we have our ability to use tools and build. Creativity which you put in is the function of frontal lobe of brain plays an important role in abstract, creativity, and learning. The frontal lobe and occipital lobe is responsible for imagination and creativity. As humans, we use this more often than all other mammals, since animals of all kind live most off of their instinct.

"social stratification refers to the way people are ranked and ordered in society. in western societies, stratification is primarily seen and understood as a result of socioeconomic status, which produces a hierarchy in which access to resources, and possession of them, increases from the lower to the upper strata"

answer; i do believe that the employee must do the adjusting;