A)
A B X Y Pits Pits Tracheids Vessels
B)
A B X Y Pits Sieve Plate Tracheids Xylem
C)
A B X Y Sieve Tube Sieve Plate Vessels Tracheids
D)
A B X Y Pits Sieve Tube Tracheid Vessel
Correct Answer: A
Solution :
[a] A and B represent pits. They allow the flow of water and nutrients from one element to another. X represents tracheids which transport water and mineral salts through xylem. Y represents vessels which help in transportation of water and soluble mineral nutrients from roots throughout the plant. Both Z and Y are elements of xylem.
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