All of the following are correct about mechanical vectors, except
A. they can spread viral, bacterial, protozoan, and worm infections.
B. the vector can carry the pathogen on its feet and mouthparts.
C. some, like flies feed on garbage and feces.
D. the vector is important to the life cycle of the infectious agent.
E. cockroaches are an example.
Answer: D
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Speciation is the divergence of two populations from a common ancestor. How does it contribute to biological diversity?
A. Speciation increases biological diversity. B. Speciation decreases biological diversity. C. Speciation has no effect on biological diversity.
Asexual reproduction in ascomycetes takes place by means of
A. ascogonia. B. ascospores. C. conidia. D. motile gametes. E. zygospores.
Which disease that affects respiratory function is caused by an infectious organism?
A. lung cancer B. emphysema C. asthma D. cystic fibrosis E. pneumonia
What is the order of structures or spaces that a surgeon will pass through to operate on a human lung?
A. skin -> intercostal muscles -> parietal pleural membrane -> pleural cavity -> visceral pleural membrane -> lung tissue B. skin -> pleural cavity -> intercostal muscles -> visceral pleural membrane -> parietal pleural membrane -> lung tissue C. skin -> visceral pleural membrane -> intercostal muscles -> pleural cavity -> parietal pleural membrane -> lung tissue D. skin -> intercostal muscles -> visceral pleural membrane -> pleural cavity -> parietal pleural membrane -> lung tissue E. skin -> intercostal muscles -> pleural cavity -> parietal pleural membrane -> visceral pleural membrane -> lung tissue Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about the lungs? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?