Select the organisms that have malpighian tubules as their excretory organ.

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Bird

Cockroach

Dog

Lizard

answer is B.

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Detailed Solution

Different organisms have different modes of excretion and their excretory organs can also vary depending on the complexity of their body.
Simple organisms can excrete waste products directly through their skin whereas complex organisms require specialized organs.
Cockroaches belong to the phylum Arthropoda. These organisms excrete with the help of their body organ called the malpighian tubules.
Malpighian tubules are tube-like structures that collect the waste from the internal body fluids.
This waste material is then released into the external environment either in solid or semi-solid form.

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