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Symbiosis

Symbiosis. Populations that live in close physical contact with each other interact in a variety of ways. What kinds of relationships?. Transfer of energy or food. Protection transportation support. Types of relationships.

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Symbiosis

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  1. Symbiosis

  2. Populations that live in close physical contact with each other interact in a variety of ways.

  3. What kinds of relationships? • Transfer of energy or food. • Protection • transportation • support.

  4. Types of relationships • There are three major types of symbiotic relationships. They are classified according to how one species is affected by the other.

  5. Commensalism • one organism benefits while the other organism is unaffected

  6. Commensalism • An example of commensalism is the relationship between trees and flowers called orchids.

  7. Commensalism • a whale transports attached barnacles throughout the ocean. The whales are not affected by the bamacles.

  8. Mutualism • both organisms benefit

  9. Mutualism • Lichen - alga and fungus. • Together these organisms live as one. • The alga supplies the fungus with sugar, other nutrients, and water. • The fungus protects the alga from intense sunlight and temperature extremes.

  10. Mutualism Butterfly fish Clown fish protect anemones from butterfly fish, while the anemones poison protects clownfish

  11. Mutualism • Ants and aphids • Ants protect and shelter aphid eggs. • Aphids provide food inn the form of liquid nectar for the ants.

  12. Parasitism • one organism benefits and the other is harmed

  13. Parasitism • A parasite uses its host as a source of food. • Usually the parasite does not kill its host. • However, the parasite may weaken or sicken the host.

  14. Parasitism • Some parasites live out­side the body of the host. • Fleas, ticks, lice, and mites are examples of external parasites.

  15. Parasitism • Many parasitic bacteria cause disease. Tuberculosis, for example, is a respiratory disease caused by parasitic bacteria.

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