Veins carry ________.
A) blood low in oxygen
B) blood high in oxygen
C) blood high in carbon dioxide
D) blood low in oxygen and high in carbon dioxide
Correct Answer:
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Q50: Which type of white blood cells produces
Q51: Select the feature which is involved in
Q52: What are lymphocytes?
A)Red blood cells
B)A specific type
Q53: What is the main role of red
Q54: Identify the primary role of the lymphatic
Q56: Which are the thinnest blood vessels?
A)Bronchioles
B)Capillaries
C)Arterioles
D)Venules
Q57: Select the correct sequence for the pathway
Q58: Choose the defining characteristic of all arteries.
A)They
Q59: Which carbohydrates are present on the surface
Q60: The cardiovascular system consists of _.
A)The heart
B)The
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