Examlex
Most of the oxygen in the bloodstream binds to the heme portion of ________ in red blood cells.
Instant Messaging
A form of real-time communication between two or more people based on typed text, images, video, or audio over the internet or other networks.
Blogging
The activity of writing or publishing personal or professional content on a website in a conversational style.
Content Sharing Sites
Online platforms where users can upload, share, and view various forms of media content.
Websites
Collections of interlinked web pages hosted on a server, accessible via the internet, and designed around a specific topic, purpose, or entity.
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