Predation is fundamentally different from parasitism in several ways:
• predators are actively looking for prey, and parasites are predominantly attached;
• the predator first kills the prey and then eats it; the parasite is able to feed only on a living host;
• for a predator, the death of a victim is obligatory; for a parasite it is usually undesirable and even dangerous (since the “habitat” of the parasite dies);
• the predator destroys and eats many prey during its life; the parasite uses one, less often several hosts;
• anatomically, predators are adapted to capture and kill prey (the presence of claws, teeth, cobwebs, etc.); parasites have organs for attachment (hooks, suckers, etc.).
Competition is a form of antibiosis in which two types of organisms are inherently biological enemies (usually due to a common food supply or limited reproduction opportunities). For example, between predators of the same species and the same population, or different species eating the same food and living in the same territory. In this case, harm done to one organism benefits another, and vice versa. Predation is a phenomenon in which one organism feeds on the organs and tissues of another (while killing the victim is not necessary), while there is no symbiotic relationship.
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