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OAA Review #1 3-19-13: Symbiotic relationships

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1.
1 point
Clownfish live among the venomous tentacles of a sea anemone. They are protected from predators, and they keep the sea anemone clean.
2.
1 point
Barnacles attach themselves to the shells of crabs. The barnacles receive a home. The crab is unaffected.
3.
1 point
Bees use flower nectar for food, and they carry flower pollen to other flowers, allowing the flower to reproduce.
4.
1 point
Dutch elm disease is caused by a fungus that grows and feeds on elm trees. The fungus destroys the trees.
5.
1 point
Orchids grown in tree branches. They receive light, and their roots get water from the air. The tree is not affected.
6.
1 point
Small mites live on your skin, eating dead skin cells. You don't even notice.
7.
1 point
Lichens are composed of a fungus and an alga. The alga makes food through photosynthesis. The fungus absorbs water and minerals from the environment. The food and water are used by both the fungus and the alga.
8.
1 point
Tapeworms live in the intestines of cats and absorb nutrients from the food the cats eat. The cats do not get enough nutrients.
9.
1 point
In a food chain, the arrow means.....
10.
1 point
The triangle in a energy pyramid represents the flow of energy. As energy moves up the energy pyramid there is ________ of it available in the system.
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