A requirement of cladistics is that a grouping must include ________.species that can interbreedonly living speciesa common ancestor and all its descendantsspecies with shared traits

In cladistics, a(n) Blank______ is a taxon that is closely related to, but not a member of, the group whose evolutionary relationships are being studied.Multiple choice question.outgroupphylogenycharacteringroup

What does a cladogram depict?Multiple choice question.A hypothesis of evolutionary relationshipsThe taxonomic hierarchy of a related group of organismsThe mechanisms that led to evolution of different character states

In a cladogram, what word describes an ancestral species and all of its descendants?Multiple choice question.OutgroupTaxonSynapomorphyClade

How is a cladogram constructed?Multiple choice question.By identifying disparate groups of organisms based on similar phenotypic traitsBy using shared derived characters to construct clades within cladesLike a flow chart, with evolutionary pathways leading to phenotypic traitsBy organizing species along a horizontal line representing the geological time at which they first evolved

Only shared derived characters are instructive in determining evolutionary relationships among taxa because Blank______.Multiple choice question.they are essential to life and therefore may not be changed over the course of evolutionthey indicate recent evolutionary changes and are therefore exhibited in closely related taxathey are retained from a distant common ancestor and are therefore exhibited by all members of a cladethey are the most prevalent characters exhibited by members of a clade