Human Anatomy, Physiology, and Medicine. Anything human! yes,
the condition where most of the hemoglobin is reduced.. "As a
biologist, I firmly believe that when you're dead, you're dead.
Except for what you live behind in history. That's the only
afterlife" - J. Craig Venter This question has been answered
many times in this thread, so I suggest you simply read it from
the start Open mouth, pour blood in mouth (or suck it in),
swallow. As for the other question, I suggest
rewording/developing/spell checking to make it understandable if
you want an answer. Science has proof without any certainty.
Creationists have certainty without any proof. (Ashley Montague)
(sighs) being a biology student in grade 10, I too beleived at
first that the colour of venal blood is blue, besides, i don't
think it has anything to do with genes. Venal blood is dark red
in colour. You see, it's basic physics which leads us to the
distortion of light. The blood in the veins absorbs the red
colour from the light ( the light here is di