Chapter 18

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

Organisms in Eubacteria and Archaebacteria were previously grouped in a kingdom called

The second part of a scientific name is unique to each

All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are

What kind of analysis focuses on the order in which derived characters appeared in organisms?

You know that the baboons Papio annubis and Papio cynocephalus do not belong to the same

Traditional classifications tended to take into account primarily 

In Linnaeus's time, all life was divided into which two kingdoms?

Scientists try to assign every organism a universally accepted name according to a system known

Linnaean classification involves

The domain that corresponds to the kingdom Eubacteria is

Before Linnaeus, scientific names were problematic because they were

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

The two domains composed of only unicellular organisms are

The domain that contains unicellular organisms that live in extreme environments is

For many species, there are often regional differences in their

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

What does a cladistic analysis show about organisms?

What is thought to be true about the three domains of living things?

Several different classes make up a

Which kingdom contains heterotrophs with cell walls of chitin?

In an evolutionary classification scheme, species within one genus should

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

To be useful, a scientific name has to refer to 

What do all organisms have in common?

Which are the two highest level taxa in the Linnaean system?

A genus is composed of a number of similar 

In evolutionary classification, a monophyletic group includes one

What is true about dissimilar organisms such as a cow and a yeast?

A trait that arose in an ancestor and is passed along to its descendants is referred to as a

Similar DNA sequences in genes can be evidence of

The grouping of organisms based on their common descent is called

Cladistic analysis considers only which kind of traits, or characters for analysis?

In Linnaeus's system of classification, how many levels are there?

The three-domain system recognizes fundamental differences between two groups of

Which of the kingdoms was once grouped with plants?

What does the presence of similar DNA sequence in the genes in dissimilar organisms imply?