Introductin  of infectious agents and oncogenesis. Identify at least five infectious agent that play role in oncogenesis and for each infectious agent write what cancer is associated  with its development and its mechanism of oncogenesis?

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Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.