Examlex
Which action is unable to produce variation?
Urine
A liquid waste product produced by the kidneys that is excreted by the body through the process of urination.
Semen
The male reproductive fluid containing spermatozoa and seminal fluid.
Intravenous Pyelography
A radiographic examination of the kidneys, ureters, and urinary bladder using intravenous contrast material to view these structures.
Radiopaque Substance
A material that does not allow X-rays or other forms of radiation to pass through, appearing white or light on a radiograph.
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