title: The occurrence of steroids and steroid metabolizing enzyme systems in invertebrates. A review.
mesh_terms: D000731:Androstanes / Q000378:metabolism; D000818:Animals; D001711:Biotransformation; D004962:Estranes / Q000378:metabolism; D005260:Female; D007313:Insecta / Q000201:enzymology / Q000378:metabolism; D007448:Invertebrates / Q000201:enzymology / Q000378:metabolism*; D008297:Male; D010053:Ovary / Q000032:analysis; D010063:Ovum / Q000032:analysis; D011278:Pregnanes / Q000378:metabolism; D013094:Spermatozoa / Q000032:analysis; D013256:Steroids / Q000032:analysis / Q000302:isolation & purification / Q000378:metabolism*
chemical_list: D000731:Androstanes; D004962:Estranes; D011278:Pregnanes; D013256:Steroids