Substances abundant in the dull, purplish red blood in the veins are _ – McqOptions

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1.	Substances abundant in the dull, purplish red blood in the veins are _____.(a) Nutrients(b) Oxygen(c) Carbon dioxide(d) Waste materials
A.	(a) and (b) only
B.	(b) and (d) only
C.	(a) and (c) only
D.	(c) and (d) only
Answer» E.

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