Interactions between organisms of an ecosystem. Symbiotic relationships. Two species live together and interact closely Three Types: Mutualism Parasitism Commensalism. Mutualism. Both species benefit from the relationship
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Ex/Oxpeckers land on rhinos or zebras and eat ticks and other parasites that live on their skin. The oxpeckers get food and the beasts get pest control. Also, when there is danger, the oxpeckers fly upward and scream a warning.
One species (the parasite) benefits, while the other (the host) is harmed.
Ex/Tapeworms are segmented flatworms that attach themselves to the insides of the intestines of animals such as cows, pigs, and humans. They get food by eating the host's partly digested food, depriving the host of nutrients.
Only one organism benefits, the other is not helped or harmed.
Ex/The Shark and the Remora have a symbiotic relationship. The remora benefits from the shark’s presence, but the shark is unaffected. The Remora stays along for the ride to catch scraps of food from the shark’s meals, and clean off pieces of the meal from the shark’s body.