They are mostly excreted in the urine. [Please select]
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Frass: the excrement; usually the excreted pellets of caterpillars. [Please select]
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If the skin is covered with an impermeable coating of grease or tar, death results from blood poisoning, owing to the retention of materials destined to be excreted by the skin. [Please select]
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Certain irritating substances when eaten may be excreted by the skin, and coming thus in direct contact with the sensory nerves produce itching, or may go further and cause distinct inflammation of the skin. [Please select]
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