Biology Excretory Products and Their Elimination Skill Builder Single Correct MCQ
Published on: August 21, 2026

Consider the following statements.

A
Flame cells are excretory structures in flatworms.
and , ,
B
Green glands are excretory organs in annelids.
correct and and and
C
Columns of Bertini are the conical projections of renal pelvis into renal medulla between the renal pyramids. incorrect correct incorrect

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The correct answer is:

                    

Nephridia are the excretory organs in annelids. Green glands are the excretory organs of Arthropods. The cortex extends in between the medullary pyramids as renal columns called Columns of Bertini.

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