The organs of excretion in crustacean are :
Correct answer: A. Coxal glands
- A. Coxal glands
- B. Flame cells
- C. Malpighian tubules
- D. Nephridia
Explanation
Crustaceans are members of the subphylum Crustacea (phylum Arthropoda), a group of invertebrate animals consisting of some 45,000 species distributed worldwide. Coxal glands, in certain arthropods such as crustaceans, are a pair of excretory organs consisting of an end sac where initial urine is collected, a tubule where secretion and reabsorption may take place, and an excretory pore at the base (coxa) of one of the legs.
This question appeared on the ETEA MDCAT 2015 paper, which you can sit online with every answer explained.
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About Excretion
Excretion removes metabolic wastes such as carbon dioxide, urea and excess salts, and differs from egestion, which removes undigested food. Questions cover kidney structure, nephron ultrafiltration, selective reabsorption and urine formation, along with the excretory roles of the lungs, skin and liver in maintaining homeostasis.
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