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.
Generally, when you download an .APK file on your PC or Mac, you need to upload it to your Android phone or tablet. And install the apk inside the phone or tablet.You need to connect your Android device to your PC or Mac with an USB cable and drop the .APK file to the SD card storage.And then launch a file explorer application on the device and navigate to the .APK file dropped.Tap on the .APK file to install the application to your device.Notes: APK file is compressed in ZIP format. It is a kind of ZIP file and can be opened by any unzip tools. You can either rename the file extension to .zip and open the file, or you can open the file directly with unzip tools.ou need to connect your Android device to your PC or Mac with an USB cable and drop the .APK file to the SD card storage. And then launch a file explorer application on the device and navigate to the .APK file dropped. Tap on the .APK file to install the application to your device.