1. Symbiosis Notes

2. Optional Notes
Symbiosis Notes
Symbiosis: The relationship in which there is a close and permanent association between organisms of different species. Symbiosis means “living together.” There are 3 main types of symbiotic relationships: Commensalism, Mutualism, and Parasitism.

3. Optional Notes
Symbiosis Notes
1. Commensalism: A symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited.
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4. Commensalism Optional Notes
A peregrine falcon and the red-breasted goose breed at the same time and the same place in Russia. The behavior of the falcon protects the nearby geese from predators. The geese benefit from the falcon, but the falcon is neither benefited nor harmed.

5. Commensalism Optional Notes
Barnacles live on whales. Barnacles are arthropods that cannot move from place to place. When the whales swim in the ocean, the barnacles get nutritious good from the water. The barnacles do not harm the whales and the whales do not benefit.

6. Commensalism Optional Notes
Optional Notes
Spanish moss and other plants grow on the branches of larger plants. The larger plants are not harmed, but the smaller plants benefit from the additional habitat.

7. Commensalism

8. Optional Notes
Symbiosis Notes
2. Mutualism: A symbiotic relationship in which both species benefit.
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9. Mutualism Optional Notes
A type of ant lives on and eats the nectar of the acacia tree. The ants protect the tree by attacking any herbivore that tries to feed on the tree. The ants clear vegetation away from the trunk of the plant and kill any plant that comes too close to the acacia. The tree provides nectar and a home for the ants.

10. Mutualism Optional Notes
A lichen is a relationship between a fungi and algae. The fungi collect and provide water for both organisms. The algae produce food for both the organisms. Both species of organisms benefit and cannot survive without the other.

13. Optional Notes
Symbiosis Notes
3. Parasitism: A symbiotic relationship in which one organism benefits but the other is harmed. Parasites harm, but usually do not kill the Host.
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14. Parasitism Optional Notes
Ticks and fleas (parasites) on a dog or cat (host). The ticks and fleas live on and drink blood from the dog or cat. The host is weakened and harmed.

18. Parasitism Optional Notes
Parasitic worms live inside the intestines of animals such as dogs, cats, cows, pigs and even humans.

27. Optional Notes
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