| High concentrations of a variety of metal ion complexes are known to be harmful because of their toxic and genotoxic effects. |
| Cells are attached to adjacent cells by junctional complexes in the lateral membranes, and form a polarized epithelium. |
| However, unlike regular metals, the transition elements can easily form extremely stable coordination complexes. |
| The residential plots and buildings have been transformed into commercial spaces, complexes and offices. |
| Apartment complexes and luxurious villas testify to the domestic lives of the inhabitants. |
| Negatively stained filaments showed tropomyosin with periodically arranged troponin complexes in electron micrographs. |