Question

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★ Define malphigian tubule.​

Answer 1

Answer:

The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids and tardigrades.

Stylised diagram of the last part of the insect's digestive tract showing malpighian tubule (Orthopteran type)

The system consists of branching tubules extending from the alimentary canal that absorbs solutes, water, and wastes from the surrounding hemolymph. The wastes then are released from the organism in the form of solid nitrogenous compounds and calcium oxalate. The system is named after Marcello Malpighi, a seventeenth-century anatomist.

It is unclear as to whether the Malpighian tubules of arachnids and those of the Uniramia are homologous or the result of convergent evolution.

Explanation:

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Answer 2

Answer:

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Malpighian tubules the excretory organs of some arthropods, such as insects and arachnids, that collect wastes from the body fluids and discharge them into the hind gut