SB4 Classification, Taxonomy Review

Use the phylogenetic tree.  Which hypothetical organism is the most recent ancestor for Organisms A and G?

• 1
• 2
• 3
• 4

What can a classification system show about an organism?

• absolute age of an organism
• what an organism is made of
• its relationship to other organisms
• which organisms are the strongest

Which domain includes all multicellular plants and animals?

• Archaea
• Eukarya
• Eubacteria
• Protista

Panthera leo, the scientific name for a lion, is a member of which species?

• leo

• Animalia

• Panthera

• mammalia

Which taxonomic category is highest?

• class

• genus

• order

• domain

An organism identified with binomial nomenclature includes which two taxa?

• class and order
• family and genus
• genus and species
• kingdom and phylum

Canis lupus, the scientific name for a wolf, is in which genus?

• Canis

• lupus

• Animalia

• mammalia

What role did Linnaeus play in classification of organisms?

• He classified all life into plants and animals.
• He classified all life by where organisms lived.
• He started naming organisms using binomial nomenclature.
• He utilized DNA technology to form the modern system of naming.

Which two organisms would probably be least closely related?

• two organisms from the same kingdom

• two organisms from the same order

• two organisms from the same family

• two organisms from the same genus

The table shows some characteristics of four kingdoms.
Which characteristics would a taxonomist use to classify organisms as Archaebacteria or as Eubacteria?

• the internal organization of the cell
• the number of cells in an individual
• the chemical composition of the cell wall
• the nutritional requirements of the organism