Most spiders spin elaborate webs to trap their prey. The bolas spider, ______, catches moths by swinging a single sticky line that gives off chemicals resembling the scent of a female moth.
Which choice completes the text with the most logical transition?
for example
similarly
however
therefore
Answer: C
The first sentence describes what most spiders do, and the second describes a spider that hunts differently. That is a contrast, so "however" fits. "For example" would present the bolas spider as a typical web-spinner, which it is not.
"For example" is tempting because the bolas spider is a specific spider, but it is an exception to the general statement, not an example of it.
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