A generic cell, aka stem cell, during development gets signals which direct it to undergo certain changes and develop into a specific cell type. These signals can bind to certain DNA sequences which encode for certain genes required for the development of the stem cell into a particular cell...
Homework Statement
Bob, the environmentally friendly farmer, wants to install a solar-powered system to pump water from his dam to the sheep troughs. The pump will run during daylight hours to fill the troughs. Bob has calculated that the right sized pump for the job pumps a maximum of 20...