@zugedanit (1958)
February 13, 2007 11:06am CST
Do you wonder why our blood is red?
2 responses
@gittabest (1949)
• Iceland
13 Feb 07
Nope, I'm not sure if I care so much.... :P
@not4me (1713)
• United States
13 Feb 07
The red color comes from our hemoglobin, otherwise known as red blood cells. It's just the way we were made! :D