Here's why:
* Parasitism is a type of symbiotic relationship where one organism (the parasite) benefits at the expense of another organism (the host).
* The parasite depends on the host for survival, obtaining its food, shelter, and sometimes even transportation from the host.
* This often comes at a cost to the host, which can experience various negative effects, ranging from mild discomfort to serious illness or even death.
Examples of parasites include:
* Ticks feeding on blood from animals
* Tapeworms living in the intestines of animals
* Fleas living on the skin of animals
* Mistletoe growing on trees
* Malaria parasites living in the red blood cells of humans