Carbon dioxide diffuses out of the tissues and into the blood, where it is dissolved in the plasma. While some of the carbon dioxide remains dissolved in the plasma, most carbon dioxide diffuses into our red blood cells.
A screencast is a digital movie in which the setting is partly or wholly a computer screen, and in which audio narration describes the on-screen action. It's not a new idea.
A-ScreencastO--Matic. ScreencastO--Matic is a wonderful web tool to use for recording your computer screen. I have been using it for a couple of years and I really love it. ScreencastO--Matic is web based so you do not need to install anything.