As embryos grow from conception to birth, cells multiply rapidly and move in a highly organized manner to create the skeleton, organs and other crucial systems. But how do cells know to move in precisely the right direction at the right time to create a fully formed, complex living organism? This is a deeply challenging question for scientists. As embryos grow from conception to birth, cells multiply rapidly and move in a highly organized manner to create the skeleton, organs and other crucial systems. But how do cells know to move in precisely the right direction at the right time to create a fully formed, complex living organism? This is a deeply challenging question for scientists. Cell & Microbiology Molecular & Computational biology Phys.org – latest science and technology news stories