Malpighian tubules are involved in excretion in:
Correct answer: A. Cockroach
- A. Cockroach
- B. Earthworm
- C. Human
- D. Planaria
- E. Hydra
Explanation
The correct answer is cockroach, as they possess Malpighian tubules for excretion. These tubules convert nitrogenous waste into uric acid, suitable for terrestrial environments. Other animals listed, such as earthworms, humans, planaria, and hydra, utilize different excretory mechanisms. Earthworms have nephridia, humans have kidneys, planaria use flame cells, and hydra rely on diffusion.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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