Exam 9: An Introduction to Taxonomy: the Bacteria

Fossil studies indicate that life on earth first arose about 4 billion years ago. How many billion years ago did multicellular living organisms appear in the fossil record?

The three domain system of classification does not include the

Within the Kingdom Monera,the group of most interest to medical microbiologists is the

Which one of the following microorganisms was once called blue-green algae?

The binomial name of a microbe is composed of its

Which of the following organisms shows the proper use of binomial nomenclature?

Which of the following criteria is not commonly used to classify bacteria?

Which of the following questions would not be a good choice for a dichotomous key?

Fungi can be differentiated from plants by the fact that

Which Kingdom includes all animals derived from zygotes?

Before bacteria received a kingdom of their own they were generally classified along with

All of the following are considered eukaryotes except

In the five Kingdom scheme of classification,Algae are classified in the Kingdom

Genetic homology determines evolutionary relationships among organisms based on

Rickettsiae and Chlamydiae are unusual in that they

How do lateral gene transfer and symbiosis complicate both the three domain and five kingdom treelike structure? Where do viruses,viroids and prions fit in today's taxonomy? Are they classified based on phylogeny or morphology?

In the five kingdom system of classification

Which groups of animals are not usually of concern to the microbiologist?

Organisms are generally classified according to

In DNA hybridization experiments,DNA from two closely related organisms will show