1. Shared derived characters are ___.
Choose one answer.
a. those thatcharacterize all the species on a branch of a phylogenetictree
b. homologousstructures that develop during adaptive radiation
c. charactersfound in the outgroup but not in the species to beclassified
d. used toidentify species but not higher taxa
2. A taxon such as the class Reptilia, which doesnot include its relatives, the birds, is ___.
Choose one answer.
a. really anorder
b. aclade
c.monophyletic
d.paraphyletic