Bio Chapter 18

One reason common names are not useful to biologists is that they

• are in Latin.
• can apply to more than one animal.
• are too long.
• require the use of a dichotomous key.

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.

At any level of organization, groups that have biological meaning are referred to as

• cladograms.
• binomials.
• taxa.
• systems.

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.

According to the rules of binomial nomenclature, which of the terms is capitalized?

• the genus name only
• the species name only
• both the genus and species names
• neither the genus nor species names

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

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

How do binomial, or two-part, names compare with early versions of scientific names?

• They tend to be longer.
• They tend to be shorter.
• They are completely descriptive.
• They are in English.

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.