During prophase the chromosomes are identical chromatids connected at the center by a centromere, forming a X-shaped object. The distinguishing feature of prophase is the setuâ¦p of the mitotic spindle, which is used to maneuver the chromosomes about the cell.
Plumbing fixtures generally refers to parts of a plumbing system that have a distinct use and application. This differentiates fixtures from other types of plumbing parts, such as pipes, which only carry water. For example, a faucet is a type of fixture because it can be turned on to release water.
Plumbing Glossary: A Detailed List of All Plumbing Terms and Definitions. (Aristocraft bristone styrine) A rigid black plastic piping used for waste, vent, and drain lines. A manual gas shut-off valve. An opening in the wall or ceiling near the fixture that allows access for servicing the plumbing/electrical system.