Question

Match the following columns.

Column I(Excretory structure)		Column II(Examples)
A	Simple tubular forms	1	Earthworm
B	Complex tubular forms	2	Platyhelminthes and rotifers
C	Protonephridia or flame cells	3	Vertebrates cells
D	Nephridia	4	Most invertebrates

• A. A-(1), B-(2), C-(3), D-(4)
• B. A-(1), B-(2), C-(4), D-(3)
• C. A-(4), B-(3), C-(1), D-(2)
• D. A-(4), B-(3), C-(2), D-(1)

Answer 1

Answer: (D)

Correct answer is (d) A-(4), B-(3), C-(2), D-(1)