Exam 4: Taxonomy and Phylogeny of Animals

A taxonomic rank above the Linnaean kingdom used to denote the Eucarya,Bacteria,and Archaea is the _______________.

To maintain cladistic classification,_______________ must be recognized as the separate kingdoms containing ciliates,flagellates and microsporidia.

The designation of subspecies status is a firm statement indicating boundaries between the subspecies are distinct.

A polyphyletic group does contain the most recent common ancestor of all members of the group but has at least two separate phylogenetic origins. Multiple Choice Questions

The method that we use to determine which state of a character is ancestral and which are derived is called ____________.

A branching diagram whose branches represent real lineages that occurred in the evolutionary past is called a ___________.

Which of the following taxa from Whittaker's five-kingdom system is most clearly incompatible with cladistic systematics?

The principle known as phenetic taxonomy has gained widespread acceptance in animal taxonomy.

Relative to lizards,the clade consisting of horses and monkeys has two synapomorphies of hair and mammary glands.

Which of the following is no longer an important criterion for species recognition?

"An irreducible (basal)grouping of organisms,diagnosably distinct from other such groupings,and within which there is a parental pattern of ancestry and descent" describes the _________.

A taxon is paraphyletic if it

Paraphyletic groups are often defined in a negative manner based on the absence of particular traits observed in a related,monophyletic group.

To a cladist,the family Hominidae

The major difference between evolutionary taxonomy and cladistic taxonomy is that the former accepts polyphyletic groups whereas the latter rejects them.

A branching diagram that presents the nested hierarchical pattern of clades within clades is called a _______________.

The ancestral/derived relationships among the different states of a taxonomic character are known as its ________.

The study of taxonomy that measures the overall similarity of organisms without regard to phylogeny is named __________________.

The man who developed the present system of classification was

A taxon is monophyletic if it includes the most recent common ancestor of a group of organisms and some but not all of the descendants of that ancestor.