What is a growth factor in biology and how does it contribute to the development and regulation of cells in living organisms?

In Biology, a growth factor is a protein that helps regulate cell growth, division, and differentiation. These factors play a crucial role in the development and maintenance of cells in living organisms by signaling cells to grow, divide, or specialize into specific cell types. They help control various processes such as tissue repair, immune response, and organ development, ensuring that cells function properly and the organism grows and functions normally.