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Question

Agents like mosquitoes and rat fleas that carry disease-causing organisms are called _________.


A

pathogens

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B

microorganisms

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C

vectors

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D

none of these

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Solution

The correct option is C

vectors


Organisms like mosquitoes and rat fleas that carry pathogens or disease causing organisms are called vectors. Vectors carry diseases from one infected person to a healthy person.
For example, female Anopheles mosquitoes carry a protozoan Plasmodium which causes malaria and rat fleas carry a bacterium Yersinia pestis which causes bubonic plague.


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