Exam 25: Bacteria, Archaea, and Viruses

If cattle and rice cultivation were dramatically reduced, there would likely be a decrease in greenhouse gases due to a reduction in _______ available to produce methane.

The phylogeny of prokaryotes

The sequencing of rRNA allowed scientists a clear understanding

The common ancestry (monophyly) of all of life is confirmed by

The group of bacteria least likely to be affected by antibiotics targeting peptidoglycan is the mycoplasma group, which belongs to the _______ class of bacteria.

Most diseases caused by viruses are caused by _______.These diseases include polio, hepatitis C, and the common cold.In plants, these viruses kill patches of cells in the leaves or stems of plants, leaving live cells amid a patchwork of discolored dead tissue, giving them the name "mosaic" or "mottle" viruses.

Antibiotics such as penicillin have little, if any, effect on the cells of eukaryotes, because they work by interfering with the synthesis of cell walls containing _______.

A group of parasites that are among the smallest of the bacteria, called the _______, have a complex intracellular life cycle.

Refer to the figure. According to the depiction of the endosymbiotic origin of eukaryotic chloroplasts, which statement is correct?

If a strain of Vibrio fischeri acquired a mutation in the receptor for a signaling gene product involved in a density-dependent response, then _______ would be prevented and bioluminescence would not occur.

Which statement about prokaryotic archaea is false?

Which statement about viruses is false?

Which of the following is not an ecological effect of viruses?

Which statement regarding the forces that shaped the evolution of Bacteria and Archaea is false?

Refer to the figure, which shows a variety of viruses. What do all of the viruses have in common?

Which of the following has been used as a bioterrorism agent, utilizing the fact that large quantities of its endospores are relatively easy to transport and spread among human populations, where they may be inhaled or ingested?

Which is/are the closest monophyletic group(s) to the Bacteria?

Refer to the figure. According to these data, evidence that mimiviruses are derived from reduced parasitic symbionts includes the

Which of the following is not a characteristic of prokaryotic cells?

A consensus tree summarizing the evolutionary relationships among organisms consists of a phylogenetic tree