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.
Screen scraping usually refers to a legitimate technique used to translate screen data from one application to another. It is sometimes confused with content scraping, which is the use of manual or automatic means to harvest content from a website without the approval of the website owner.