Fleas, ticks, and mites are categorized as what type of parasites?

Fleas, ticks, and mites are classified as ectoparasites because they live on the outer surface of their host organisms. Ectoparasites typically attach to the skin or fur of animals and feed on their blood or tissue, which can lead to various health issues for the host, including skin irritations and the transmission of diseases.

In contrast, endoparasites reside within the host's body, usually in the digestive tract or other internal organs, and include organisms such as worms and protozoa. Protozoan parasites are single-celled organisms that can cause various infections, often within the host's cells or tissues. Helminths consist of more complex multicellular organisms such as flatworms or roundworms that also live inside the host.

Understanding the distinctions between these categories helps in diagnosing and treating parasitic infections effectively.