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Symbiotic Relationships Name: Jake Smith Mutualism The Yucca Tree is a type of perennial shrub and tree found in parts of North and South America. They are know for their tough, sword shaped leaves and whitish flowers. Yucca Moths have white wings to blend in with flowers on the plants. Their lifecycle is about one year. The Yucca Tree and the Yucca Moth share a mutually beneficial relationship, each dependent on the other for survival. The tree receives the benefit of pollination from the moth, and the moth feeds off the seeds on the yucca tree. The female yucca moth is the only pollinator of the yucca tree, and the tree is the only host plant of the yucca moth. In fact, this relationship is so specialized, each yucca tree species is pollinated by only one type of yucca moth. Mutualism • 1 – One relationship is the oxpecker and zebra. The oxpecker eats all the parasites/ticks off the zebra’s body. Another relationship is the bee and flower. When the bee lands on a flower it gets pollen on its body, it goes to the next flower and rubs the pollen on that flower. • 2 – Mutualism is when one organism benefits another organism. The oxpecker takes all the dangerous parasites off the zebra’s skin. The bee takes the pollen off one flower and rubs it on another. This helps the flower grow. All mutualism benefits an organism. Parasitism • 1- One example of parasitism is tapeworms. They feed on your intestines and can harm you greatly. Another example are fleas. They can latch on to their hosts and suck their blood making them itch. The last example are barnacles they don’t do much harm but can make whales itch. • 2- Parasitism is when one organism harms another. An example is when tapeworms feed on your intestines and harm you. Another example is when fleas suck your blood and make you itch. The last example are barnacles that cant do much harm but are annoying to whales. Commensalism • 1- One example of commensalism is the cattle egret. The cattle egret eats all the insects that are in the cattle way. Though this doesn’t effect the cattle in any way shape or form. • 2- Commensalism is when one organism benefits itself but doesn’t effect the other organism. The cattle egret gets food but doesn’t effect the cattle. Another example is the barnacle eater. The barnacle eater eats all the barnacles off whales. When this happens, the whales are unaffected.