The endoplasmic reticulum is only one component of a cell. 1  The following cell structures can also be found in a typical animal eukaryotic cell: 2  Centrioles - cylindrical groupings of microtubules found in animal cells but not plant cells. They help to organize spindle fibers during cell division.
Android application package (APK) is the package file format used by the Android operating system for distribution and installation of mobile apps and middleware. The files that contain the .apk file extension store the files that are needed to run a single Android application on an Android mobile device.
An ArcPad Graphics layer (filename.APG) is a vector file format written in XML. The XML tags used by the ArcPad Graphics layer are described in the ArcPad Studio Help. The ArcPad Data Manager for ArcGIS Desktop includes tools for exporting ArcGIS graphic elements to ArcPad graphics layers, and vice versa.