Below are paired items referring to the heartworm Dirofilaria immitis. Which of the pairs is mismatched?Group of answer choicesdog sexual reproductiondog definitive hostmosquito definitive hostNone of the pairs is mismatched.mosquito vector
Question
Below are paired items referring to the heartworm Dirofilaria immitis. Which of the pairs is mismatched?Group of answer choicesdog sexual reproductiondog definitive hostmosquito definitive hostNone of the pairs is mismatched.mosquito vector
Solution
The mismatched pair is "mosquito definitive host".
Here's why:
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"Dog sexual reproduction": This is correct. The heartworm Dirofilaria immitis reproduces sexually within the dog's body.
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"Dog definitive host": This is also correct. The dog is the definitive host because it is where the heartworm matures and reproduces.
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"Mosquito definitive host": This is incorrect. The mosquito is not the definitive host, it is the intermediate host. The mosquito is responsible for transmitting the heartworm larvae from one host to another.
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"None of the pairs is mismatched": This is incorrect because the pair "mosquito definitive host" is mismatched.
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"Mosquito vector": This is correct. The mosquito is the vector, meaning it carries the heartworm from one host to another.
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