1.

The diagrams W, X, Y and Z given below represent the foot of four birds a, b, c and d. Which of the following is correct regarding them?  

A. Foot W, used for swimming, belongs to bird d.
B. Foot X, used for catching prey, belongs to bird c.
C.  reptiles.  
D. Foot Z, used for walking, belongs to bird b.
Answer» C.  reptiles.  


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