A significant finding was that the tumor cells had characteristic biological machinery that drives development of head and neck muscles. (sciencedaily.com)
This could be due to their inherit instability or the lack of suitable biological machineries for their assembly. (sciencedaily.com)
Well, one of the issues that we have to think about is how small molecules can get across membranes without all the complicated modern biological machinery that controls the transport of molecules across membranes. (scientificamerican.com)