question: what have teats and each teat has one opening?
choices.text: arthropods female fish multinucleated cells platypus female mammals animals in Class Aves chondrichthyes insects
choices.label: A B C D E F G H
formatted_question: what have teats and each teat has one opening? (A) arthropods (B) female fish (C) multinucleated cells (D) platypus (E) female mammals (F) animals in Class Aves (G) chondrichthyes (H) insects