Fun facts: A Flatworm has a single opening to its stomach, in the middle of its underside. The Flatworms in vernal pools can stick this pharynx (throat/mouth) into their prey. Like a short vacuum cleaner hose, it sucks out the insides of their prey.They also use it to push wastes out of their bodies.escription: Although they are called Flatworms, these invertebrates are not flat. They are round-bodied with a flat belly. They are longer than they are wide. They are pointed at each end.
1 The video can only be uploaded if it is less than 1024 MB in size and no longer than 20 minutes. 2  Shoot the video with a medium resolution. 3  The higher the resolution, the more the size of the video. 4  If you do not want a particular person(s) to see the video, be sure to specify that before sharing the video.
You can only tag your friends in videos you've uploaded. To tag friends in a video: 1  Click the video to expand it. 2  Click Tag Video. 3  Type the name of the person you want to tag. 4  Click their name when it appears in the list of results.ou can turn Facebook's video auto-play settings on or off. To stop videos from playing automatically on your computer: 1  From the top right of Facebook, click and select Settings. 2  Click Videos in the left menu. 3  Click the dropdown menu next to Auto-play Videos and select Off.