Legionella pneumophila is an opportunistic pathogen that

A) is part of the microbiome of the lower respiratory system.
B) is part of the microbiota of the nasal cavity which occasionally invades the lungs.
C) survives in the environment as an intracellular parasite of a protozoan.
D) is capable of forming endospores.
E) is a disease of birds transmissible to humans.


C
Bloom's Taxonomy: Knowledge
Section: Bacterial Diseases of the Lower Respiratory System
Learning Outcome: 22.15

Biology & Microbiology

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A technique used in dating a rock can be used to accurately predict the age of the fossils occurring in the rocks. This technique involves 

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The genetic code is made up of codons consisting of

how many nucleotides? a. 2 b. 3 c. 5 d. 6 e. 9

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Heavy metals work by

A. inactivating proteins. B. binding to DNA. C. mutating DNA. D. dissolving the cell wall. E. rupturing the cell membrane.

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The responsiveness of cells to calcitonin increases as an individual ages; maximum responsiveness occurs in elderly individuals as a mechanism to improve the stability and strength of bones

Indicate whether the statement is true or false

Biology & Microbiology