question: What is poorly understood for metazoas?
choices.text: habitat antigens that cause allergy intervertebrate evolutionary history protein foreign to the body. nucleotides composing polymers melanin content vertebrate
choices.label: A B C D E F G H
fact2: Metazoan phylogeny Phylogeny of phyla is poorly understood.
combinedfact: The evolutionary history of metazoas is poorly understood.
formatted_question: What is poorly understood for metazoas? (A) habitat (B) antigens that cause allergy (C) intervertebrate (D) evolutionary history (E) protein foreign to the body. (F) nucleotides composing polymers (G) melanin content (H) vertebrate