question: What is lymph filtered by?
choices.text: Sponge tissue blood skin nodes retina mammals liquids
choices.label: A B C D E F G H
fact2: Lymph nodes, or glands, filter the lymph fluid.
combinedfact: lymph is filtered by nodes
formatted_question: What is lymph filtered by? (A) Sponge (B) tissue (C) blood (D) skin (E) nodes (F) retina (G) mammals (H) liquids