Which of the following may be a component of bacterial cell walls?
A) carrageenan
B) lipoteichoic acids
C) mycolic acid
D) tubulin
E) both lipoteichoic and mycolic acids
E
Bloom's Taxonomy: Comprehension
Section: Bacterial Cell Walls
Learning Outcome: 3.11
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In the Hardy-Weinberg equation, p and q are _____.
A. genotypes B. mutation rates C. phenotypes D. allele frequencies E. measures of fitness
An important message from the work of Thomas Malthus that influenced Charles Darwin was
A. animals tended toward "human perfection." B. only a fraction of any population will survive and reproduce. C. population size of humans can. D. inheritance of acquired characteristics. E. none of these. Charles Darwin was influenced by John Ray not Thomas Malthus.
Which of the following occurs in the lungs?
A) Air loses all of its oxygen. B) Oxygen and carbon dioxide move from a lower concentration to a higher concentration. C) Some of the oxygen in the air moves into the blood, and some of the carbon dioxide in the blood moves into the air. D) As oxygen-poor blood travels through the lungs, it releases all of its carbon dioxide. E) Gases move by bulk flow into and out of the blood.
In the wake of the Ebola outbreak in West Africa in 2014-2016, researchers observed infectious Ebola virus is present in the eyes and semen of infected individuals months after apparent recovery from the acute stage of the disease. Based on information in this chapter, propose an explanation for this observation.
What will be an ideal response?