question: what can classification be based on?
choices.text: trees and flowers revolutions evolutionary past of organisms antigens that cause allergy Amount of melanin humans the strength and magnitude of an earthquake h2o
choices.label: A B C D E F G H
fact2: Classification can be based on phylogeny.
combinedfact: classification can be based in the evolutionary history of a group of related organisms
formatted_question: what can classification be based on? (A) trees and flowers (B) revolutions (C) evolutionary past of organisms (D) antigens that cause allergy (E) Amount of melanin (F) humans (G) the strength and magnitude of an earthquake (H) h2o