Exam 2: Biological Diversity, Bacteria, and Archaea

DNA analysis has confirmed the relationships among most species well beyond any reasonable doubt.

A viral particle is very simple, consisting of a core of DNA or RNA surrounded by a ____________________.

Which of the following statements about bacteria is false?

The most inclusive category in the Linnaean classification system is

Which of the following pairs of kingdoms would be included exclusively in the domain Eukarya?

The most restrictive category in the Linnaean classification system is

What single feature, shared by all organisms, allows scientists to reliably compare distantly related living or recently extinct organisms?

Bacterial cells can typically be described by one of the following three shapes:

The members of which of the following taxa would be most similar to one another?

Switching the order of the last two organisms on an evolutionary tree has no effect on how the tree is read.

Within an evolutionary tree descendants share common features because they share a common ____________________.

Prokaryotes differ in several ways from eukaryotes; one of the most distinctive is

Prokaryotic genomes

Which of the following avian species are most closely related?

A lineage is a group of relatives that have a common ancestor.

New features that allow a group to survive and reproduce successfully can be called ____________________ innovations.

Like any disease or parasite, viruses need to reach new hosts to extend the infective cycle, which explains why such a large number of viral infections are associated with the

Which of the following would contain the most closely related group of phyla?

Cipro, an antibiotic that is taken orally, has been recently reevaluated for its impact on intestinal microbial flora; what best summarizes the findings?

Because plants lack the ability to directly use the _____ present in the atmosphere, their abundance often depends on bacterial populations present within the soil.