Which organism is a one-host tick?

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Study for the VTNE Laboratory Procedures Test. Use flashcards and multiple choice questions, each question offers hints and explanations, enabling increased understanding and retention. Prepare effectively for your exam!

Multiple Choice

Which organism is a one-host tick?

Explanation:
The key idea is how many hosts a tick uses for feeding across its life stages. A one-host tick stays on the same animal for larva, nymph, and adult, feeding and often molting on that single host. Otobius megnini, the spinose ear tick, fits this pattern because its larval, nymphal, and adult stages occur on the same host, typically in the ear, with feeding and development completed there. In contrast, many other ticks feed on different hosts at different life stages or molt off the host, so they are not one-host ticks. This makes Otobius megnini the correct example of a one-host tick.

The key idea is how many hosts a tick uses for feeding across its life stages. A one-host tick stays on the same animal for larva, nymph, and adult, feeding and often molting on that single host. Otobius megnini, the spinose ear tick, fits this pattern because its larval, nymphal, and adult stages occur on the same host, typically in the ear, with feeding and development completed there. In contrast, many other ticks feed on different hosts at different life stages or molt off the host, so they are not one-host ticks. This makes Otobius megnini the correct example of a one-host tick.

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