TEKS 8ABC-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.

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

• cladograms
• binomials
• taxa
• systems

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

Several different classes make up a

• Kingdom
• Phylum
• Family
• Genus

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

• kingdom and order
• domain and phylum
• phylum and kingdom
• genus and kingdom

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

• Amphibia
• Mammalia
• Aves
• Reptilia

In evolutionary classification, a monophyletic group includes one

• species and all its ancestors.
• ancestor and all its descendants.
• species and its genus.
• genus and all its species.

In Linnaeus’s time, all living things were grouped into two kingdoms. Later, there were five kingdoms, and now we have six kingdoms. What is the main reason for this increase in the number of kingdoms?

• Scientists have discovered organisms that were previously unknown, so new kingdoms had to be created for them.
• Kingdom Plantae had to be split up into several kingdoms when scientists found that not all plants can photosynthesize.
• As scientists learned more about genetics and biochemistry, some organisms were moved out of existing kingdoms and into new ones.
• Since the time of Linnaeus, many new organisms have evolved, and most of them don’t fit into the original kingdoms.

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

• They diverged from a common ancestor fairly recently.
• They diverged from a common ancestor before the evolution of the main groups of eukaryotes.
• They did not have a common ancestor.
• Domains Bacteria and Archaea evolved after the main groups of eukaryotes.