Which of the following is an external parasite?

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Study for the Certification Council for Professional Dog Trainers Test. Prepare with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam efficiently!

Multiple Choice

Which of the following is an external parasite?

Explanation:
External parasites live on the surface of the animal and feed from it. Fleas are classic external parasites: they live on the skin and in the fur, bite to suck blood, and spend much of their life cycle on the host. This makes them a quintessential external ectoparasite. In contrast, heartworms reside inside the body—in the heart and blood vessels—while tapeworms live in the digestive tract as internal parasites. Ticks are also external parasites, but fleas are the example here that best illustrates an external parasite.

External parasites live on the surface of the animal and feed from it. Fleas are classic external parasites: they live on the skin and in the fur, bite to suck blood, and spend much of their life cycle on the host. This makes them a quintessential external ectoparasite. In contrast, heartworms reside inside the body—in the heart and blood vessels—while tapeworms live in the digestive tract as internal parasites. Ticks are also external parasites, but fleas are the example here that best illustrates an external parasite.

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