According to the passage, fleas are resistance to sprays and chemical because they __________________.
A
have waterproof sclerites
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B
are excellent jumpers
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C
reproduce very rapidly
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D
can stick to fur like velcro
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Solution
The correct option is A have waterproof sclerites Since we know that the exoskeleton on a flea is called a sclerite, we can infer that the sclerite is waterproof, which makes fleas resistant to sprays and chemicals.