2013-2023 Chapter 18 - Classification

Linnaean classification involves

• only large, general categories of organisms.
• only small, specific categories of organisms.
• both large and small categories of organisms.
• no categories of organisms.

One goal of scientists is to assign every organism a universally accepted name according to the system known as

• traditional classification.
• the three domains.
• binomial nomenclature.
• cladistics.

For many species, there are often regional differences in their

• common names.
• scientific names.
• taxa.
• binomial nomenclature.

To be useful, a scientific name has to refer to

• all living species.
• all living and extinct species.
• all species in one habitat.
• a single species.

Based on their names, you know that the baboons Papio annubis and Papio cynocephalus do NOT belong to the same

• class.
• family.
• genus.
• species.

The second part of a scientific name is unique to each

• order in its class.
• family in its order.
• genus in its family.
• species in its genus.

Systematics is

• a system of classification created by Carolus Linnaeus.
• the science of naming and grouping organisms.
• a way to give a two-part scientific name to all organisms.
• a list of characteristics that can be used to identify an organism.

A genus is composed of a number of similar

• kingdoms.
• phyla.
• orders.
• species.

Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class

• Amphibia.
• Mammalia.
• Aves.
• Reptilia.

Traditional classifications tended to take into account primarily

• extinct organisms.
• RNA similarities.
• DNA similarities.
• visible similarities and differences.