Q.1.
Which parts of the circulatory system have thin walls, allowing diffusion of gasses?
Q.2.
Arteries carry blood in which direction?
Q.3.
Valves preventing the backflow of blood and are found in which of the following?
Q.4.
Platelets are involved in blood...
Q.5.
Which of the following is another name for a red blood cell?
Q.6.
Red blood cells have a special shape to allow maximum...
Q.7.
Blood plasma is...
Q.8.
Plasma carries carbon dioxide away from the...
Q.9.
What are the smallest blood vessels, requiring a microscope in order to be seen?
Q.10.
Most arteries carry blood which is...