Consider the following statements each with two blanks.

Biology Excretory Products and Their Elimination Skill Builder Single Correct MCQ

Published on: August 21, 2026

Annelids have (1) and insects have (2) for excretion.
(1) - Malpighian tubules, (2) - flame cells, (5) contracts, (6) - relax

Blood enters the glomerulus via (3) arteriole and leaves via (4) arteriole.
(3) - Afferent, (4) - efferent, (5) - contracts, (6) - relax

During micturition, the urinary bladder (5) and the urethral sphincters (6).
Which one of the following option correctly fills the blanks in any two of the above statements? (1) - Nephridia, (2) - efferent, (5) - contracts, (6)-relax

(3) - Efferent, (4) - afferent, (5) - relaxes, (6) - contract.

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The correct answer is:

Annelids have nephridia and insects have Malpighian tubules for excretion.
Blood enters the glomerulus via afferent arteriole and leaves via efferent arteriole.
During micturition, the urinary bladder contracts and the urethral sphincters relaxes.

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