1) A symbiotic relationship where one species benefits while the other is harmed. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 2) In shallow areas of the ocean floor, spider crabs live with greenish-brown algae growing on their backs. The algae gets a good place to live, and the crab gets camouflage. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 3) Fleas live in the fur of animals. They bite and suck the blood of the organism. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 4) In a snowy environment, a white polar bear avoids being noticed by white baby seals which are trying to avoid being noticed by the bear. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 5) Cheetahs and nocturnal leopards use the same waterhole in a grassland savanna. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 6) Certain bacteria that live in the intestines of humans and eat the food that the human cannot digest. Human can then use the partially digested food. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 7) Orchids grow inside a bromeliad plant. The orchid obtains water and nutrients from the bromeliad, but does not help or harm it. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 8) One organism catches another organism and eats it. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 9) Relationship in which one species benefits and the other is not affected. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 10) When the brown anole was introduced to Florida from Cuba and the Bahamas, it started to eat the same food that the native green anoles eat. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 11) Barnacles on a humpback whale eat scraps the whale misses. The whale is not harmed or helped. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 12) Two organisms fight for limited resources. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 13) An eagle grabs a fish out a lake to eat. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 14) A fungus causes lumpy jaw, a disease that injures the jaws of cattle and hogs. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism 15) Both species benefit from one another. a) Competition b) Predation c) Mutualism d) Commensalism e) Parasitism

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