Symbiosis

• Symbiosis - a close and long-term relationship between different species.
• In symbiosis, at least one species benefits.
• Mutualism - both organisms benefit from the relationship.
• Mutualism is a win-win relationship.
• Bees and flowers are an example of mutualism.
• Commensalism - one organism benefits and the other is not affected.
• Commensalism is a win-neutral relationship.
• An example of commensalism is birds and trees.
• Parasitism - one organism benefits and the other is negatively affected.
• Parasitism is a win-lose relationship.
• In parasitism, parasites can live in or on the host.
• Parasites rarely kill their host.
• Some parasites are leeches and tapeworms.
• Parasitism is a long-term relationship.