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.
Advanced Placement (AP) is a program in the United States and Canada created by the College Board which offers college-level curricula and examinations to high school students. American colleges and universities may grant placement and course credit to students who obtain high scores on the examinations. The AP curriculum for each of the various subjects is created for the College Board by a panel of experts and college-level educators in that field of study. For a high school course to have the AP designation, the course must be audited by the College Board to ascertain that it satisfies the AP curriculum. If the course is approved, the school may use the AP designation and the course will be publicly listed on the AP Course Ledger.