Answer :
Final answer:
The three ectoparasites that are classed as insects are lice, fleas, and ticks. Although, it's important to note that ticks are actually part of the arachnid class, not insects. Mosquitoes are not considered ectoparasites.
Explanation:
The question asks to identify three ectoparasites which are classed as insects. Ectoparasites are organisms that live on the exterior of a host organism, often causing harm. The correct answer is option a) lice, fleas, and ticks. These are all common examples of ectoparasitic insects. Ticks, lice, and fleas all fit this classification as they live and feed on the exterior of mammals, including humans.
Please note that while ticks are often mistaken as insects, they are actually part of the arachnid class, along with spiders and mites. Therefore, as ticks and mites are not insects, options b) and d) are incorrect. Mosquitoes, on the other hand, are insects, but they are not considered ectoparasites as they do not live on the host. Thus, option c) is also not correct.
Learn more about Ectoparasites here:
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