2 Answers

The excretory organ of an earthworm is represented by…

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BIOLOGY

Use the diagram to answer the question that follows:

The excretory organ of an earthworm is represented by…

The excretory organ of an earthworm is represented by

  • A. IV
  • B. I
  • C. III
  • D. II

QUICK ANSWER…

C

DETAILS…  

Excretory organs are specialized organs employed by organisms to remove wastes from their body system.

Now for the right answer to the above question:

  1. The image corresponding to option IV is the malpighian tubule which is the specialized excretory organ of insects. so, A is quite incorrect.
  2. The image corresponding to option I is the flame cell which is the specialized organ for excretion in flatworms and rotifers. B is also incorrect.
  3. The image corresponding to option III is the nephridium which is the specialized excretory organ for an earthworm. C is very correct.
  4. D is incorrect; the image corresponding to II is the kidney which is the specialized organ used by vertebrates (and not earthworms) to remove bodily wastes.

QUICK ADVICE…

You may please note that:

  • Flatworms uses flame cells as well as nephridia to remove wastes.
  • The four images shown above are all excretory organs of different organisms in their different levels of complexities.

Use the questions and answers session to raise further questions on this topic…

/ culled from 2017 JAMB-UTME biology question 7 /

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