Coco Trivia

Get extra questions per day by enabling special member notifications on your browser.

Which type of fluid did scientist Karl Landsteiner work with?

Blood

Urine

Mucus

Saliva

Padlock

Come back tomorrow
for more questions!

Wanna know more?

Source:

Choice "A": Blood of users selected this choice.
Choice "B": Urine of users selected this choice.
Choice "C": Mucus of users selected this choice.
Choice "D": Saliva of users selected this choice.

Hey!

It looks like you’ve already answered this question on . You can check the question or come back tomorrow for more.

Your answer was: .