Species Interaction

1. Species Interaction Symbiosis

2. Symbiosis • Means “living together” • Interaction between two species where at least one benefits • Some organisms are permanently dependent on others for survival • Three types • Mutualism • Commensalism • Parasitism

3. Mutualism • Both species benefit • Example: Humming bird and flower • Hummingbird gets food and flower gets pollinated

4. Commensalism • One species benefits and the other is not helped nor is it harmed • Example: Remora on a shark.

5. Parasitism • One organism living in or on another organism and causes harm • Parasite: organism that benefits • Host: organism that is harmed • Example: fleas on dogs

6. Symbiosis Practice Which type of symbiosis is it?

7. Commensalism • Remora Fish and Shark • Remora fish attaches itself to the underside of shark without harming the shark • Remora eats leftover bits of food from the sharks meals • Remora also gets protection from predators

8. Parasitism • Mistletoe and trees • Mistletoe grows on trees like Palo Verde • Mistletoe takes nutrients from trees • Causes harm to Palo Verde Host: Parasite: Trees (Palo Verde) Mistletoe

9. Mutualism • Cow and bacteria • Bacterial live in cow’s stomach and helps breakdown plant matter Both partners benefit!

10. Symbiosis = Adaptation? • Adaptation is a behavior or physical characteristic that helps an organism survives. • How does symbiosis help organisms survive? • Gives advantage • Protection from predators • Easier access to food

11. Symbiosis is a lifesaver