The excreta of spiders.
D000818:Animals; D002854:Chromatography, Paper; D002855:Chromatography, Thin Layer; D005243:Feces; D006147:Guanine / Q000378:metabolism; D066298:In Vitro Techniques; D009584:Nitrogen / Q000378:metabolism; D013053:Spectrophotometry; D013112:Spiders; D014527:Uric Acid / Q000378:metabolism
D014527:Uric Acid; D006147:Guanine; D009584:Nitrogen