Question:
Which set of excretory organs is found in Arthropoda?
Which set of excretory organs is found in Arthropoda?
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Arthropoda excretion varies: insects → Malpighian tubules, arachnids → coxal glands, crustaceans → green glands.
Updated On: Jul 18, 2026
- Malpighian tubules, coxal glands and green glands
- Malpighian tubules and flame cells
- Flame cells and solenocytes
- Nephridia and flame cells
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The Correct Option is A
Solution and Explanation
Step 1: Understanding arthropod excretion.
Arthropoda is a diverse phylum including insects, crustaceans, and arachnids. Different groups within arthropods possess different excretory structures.
Step 2: Malpighian tubules.
Malpighian tubules are found in insects and some arachnids. They remove nitrogenous wastes and help in osmoregulation by opening into the gut.
Step 3: Coxal glands.
Coxal glands are present in arachnids like spiders and scorpions. They function in excretion and help remove metabolic waste from hemolymph.
Step 4: Green glands.
Green glands are excretory organs found in crustaceans such as prawns and crabs. They are involved in filtration and osmoregulation.
Step 5: Evaluation of options.
Flame cells and solenocytes are found in lower invertebrates like flatworms and annelids, not arthropods. Thus those options are incorrect.
Step 6: Final conclusion.
All three (Malpighian tubules, coxal glands, and green glands) collectively represent arthropod excretory organs.
Arthropoda is a diverse phylum including insects, crustaceans, and arachnids. Different groups within arthropods possess different excretory structures.
Step 2: Malpighian tubules.
Malpighian tubules are found in insects and some arachnids. They remove nitrogenous wastes and help in osmoregulation by opening into the gut.
Step 3: Coxal glands.
Coxal glands are present in arachnids like spiders and scorpions. They function in excretion and help remove metabolic waste from hemolymph.
Step 4: Green glands.
Green glands are excretory organs found in crustaceans such as prawns and crabs. They are involved in filtration and osmoregulation.
Step 5: Evaluation of options.
Flame cells and solenocytes are found in lower invertebrates like flatworms and annelids, not arthropods. Thus those options are incorrect.
Step 6: Final conclusion.
All three (Malpighian tubules, coxal glands, and green glands) collectively represent arthropod excretory organs.
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