Assertion: earthworm's organ | /r/HasProperty | the nephridium
Facets:
Source sentences:
text: This tubule then leads to the main body fluid filtering organ, the nephridium or metanephridium, which removes metabolic waste from the coelomic fluid and expels it through pores called nephridiopores on the worm's sides; usually, two nephridia (sometimes more) are found in most segments.