Lizards, snakes and frogs
Crickets, houseflies and grasshoppers
Millipedes, centipedes and scorpions
earthworms, roundworms and flatworms
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The correct answer is B. Crickets, houseflies, and grasshoppers.
Explanation:
Malpighian tubules are excretory structures found primarily in insects and some other arthropods. These tubules function in the removal of metabolic wastes and play a crucial role in osmoregulation. Insects such as crickets, houseflies, and grasshoppers possess Malpighian tubules that help maintain internal homeostasis by excreting nitrogenous wastes and regulating water balance.
In contrast, lizards, snakes, and frogs (Option A) are vertebrates that utilize kidneys for excretion. Millipedes, centipedes, and scorpions (Option C) are arthropods, but not all possess Malpighian tubules; for example, scorpions have coxal glands for excretion. Earthworms, roundworms, and flatworms (Option D) are invertebrates with different excretory systems, such as nephridia in earthworms.
Therefore, Malpighian tubules are characteristic of insects like crickets, houseflies, and grasshoppers.
C is not correct because Scorpion uses their anus
Excretion and water balance are interlinked in all terrestrial arthropods, including scorpions. Nitrogenous wastes from protein metabolism are collected by two pairs of Malpighian tubules. They enter the gut at the midgut-hindgut connection. Excretory wastes are expelled through the anus with feces.
