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Symbiosis

Symbiosis. Parasitism, Mutualism, and Commensalism. What is symbiosis?. Symbiosis occurs when two species live together in a close long-term association . All living things have the same basic requirements:. • Food/Nutrition • Shelter/Living space • Water

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Symbiosis

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  1. Symbiosis Parasitism, Mutualism, and Commensalism

  2. What is symbiosis? • Symbiosis occurs when two species live together in a close long-term association.

  3. All living things have the samebasic requirements: • • Food/Nutrition • • Shelter/Living space • • Water In a symbiotic relationship at least one of the organisms involved is meeting one of the basic needs for living through the relationship.

  4. Quickwrite • In your science notebook, give two examples of how two living things can: • #1. Benefit, or be helpful, to one another • #2. Be harmful, or hurt, one another.

  5. Three types of symbiosis • There are three main types of symbiotic relationships. They are: • Parasitism-One organism is helped,while the other is harmed. • Commensalism- Neither organism is harmed…live peacefully. • Mutualism-Both organisms benefit from living together.

  6. Parasitism • Parasitism • Relationship in which one organism feeds on and usually lives on or in another. • Ex: tape worm. • + the tape worm lives inside the animals intestines and gets shelter and food. • - the animal looses nutrition, may loose weight and become ill.

  7. Parasitism

  8. commensalism Commensalism • A symbiotic relationship in which one organism benefits and one is neither harmed nor helped. • Example: Epiphytes also known as “air plants.” live on the bark of trees. • + the epiphyte gets space to live. • 0 the tree is not harmed nor does it benefit in any way.

  9. Commensalism

  10. mutualism Mutualism: • a symbiotic relationship in which both participating species benefit. • EX: Ant & Aphid: + ant gets nutrition from the aphid’s honeydew—a sugary secretion from the aphid’s body. • + the aphid gets protection from the ant against predatory insects like ladybugs.

  11. Mutualism

  12. Activity station

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