A parasitic relationship is a type of symbiotic relationship where one organism benefits at the expense of another organism, which is harmed in the process.
Think of a mosquito biting you to feed on your blood. The mosquito benefits by getting nourishment, but you are harmed as it causes itching and potential disease transmission.
Host-parasite interaction: This term refers to the specific interaction between a parasite and its host.
Pathogen: A pathogen is an organism that causes diseases in its host.
Ectoparasite vs. Endoparasite: Ectoparasites live on the surface of their hosts (like ticks), while endoparasites live inside their hosts (like tapeworms).
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