question: A fluid rich in protein leaks out of capillaries into spaces between what?
choices.text: Testes several blood cells matter antigen people skin
choices.label: A B C D E F G H
fact2: Lymph fluid is rich in protein.
combinedfact: A fluid rich in protein leaks out of capillaries into spaces between cells
formatted_question: A fluid rich in protein leaks out of capillaries into spaces between what? (A) Testes (B) several (C) blood (D) cells (E) matter (F) antigen (G) people (H) skin