The chrysalis is the pupa of a butterfly. The cinchona tree is a tropical tree that is the primary source of the anit-malarial drug quinine . Quinine is found in the bark of the cinchona tree. Quinine is a chemical that cures malaria, a deadly tropical disease carried by mosquitoes. They show the distribution and origins of shared characteristics.
Cladograms are testable hypotheses of phylogenetic relationships.
In classification, a class is a group of related or similar organisms. A class contains one or more orders. A group of similar classes forms a phylum. The classification of organisms helps in the their study. When alive, claws were sheathed in a horny, keratinous material much like our fingernails, making the claw even bigger, longer and sharper.