question: What leaks out of blood vessels?
choices.text: allergen water vapor ribonucleic acid antibodies irritants antigens melanin content Lymph fluid
choices.label: A B C D E F G H
fact2: Capillaries Capillaries are tiny, thin walled blood vessels.
combinedfact: Lymph fluid leaks out of blood vessels into spaces between cells
formatted_question: What leaks out of blood vessels? (A) allergen (B) water vapor (C) ribonucleic acid (D) antibodies (E) irritants (F) antigens (G) melanin content (H) Lymph fluid