Answer:
Habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat
ATP or adenosine tri phosphate is the cell's main source of energy. It is hydrolyzed by the cell and the energy released is used in cellular activities like muscle movement
I believe it would be manual labor. During the Industrial Age of Employment, most people would have to do repetitive jobs, or manual labor. Design, engineer, and knowledge broker were not common during this time.
