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Relationships in Ecosystems
Number your paper 1 – 17. For each statement write the word from the word bank that best describes the relationship.
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1. Vultures gather around a dead deer.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism
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2. Camels, cacti, sagebrush, lizards, snakes and insects all live together in a section of the desert. WORD BANK: commensalism mutualism scavenger population community predation competition organism food chain decomposer parasitism habitat
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3. A tick feeds on your dog. WORD BANK: commensalism mutualism
scavenger population community predation competition producer food chain decomposer parasitism community
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4. Beetles and termites want to break down the dead material in the same spot on the same dead tree.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism
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5. Mice feed on acorns; owls feed on mice.
WORD BANK: commensalism mutualism scavenger population community predator-prey competition organism food chain decomposer parasitism producer
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6. A pond frog catches a nice fly on his sticky tongue.
WORD BANK: commensalism mutualism scavenger population community predation competition food chain decomposer habitat parasitism producer
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7. The dandelions and your lawn are trying to grow in the same space.
WORD BANK: commensalism mutualism scavenger population community predator-prey competition food chain decomposer consumer parasitism
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8. Mule deer live in the forest behind my house.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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9. A bacteria causes your throat to be sore.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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10. An orchid attaches itself to a tree branch without doing the tree any harm.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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11. A poisonous sea anemone gives protection to a fish, but feeds on the predators that come after it. WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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12. A mountain lion stalks a young deer.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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13. A fungus grows on a rotting log.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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14. Ants crawl all over a dead worm.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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15. Some bacteria live and get their nourishment inside your intestines, and help keep them healthy.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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16. Weeds and young corn plants try to grow in the same garden.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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17. A spider traps a fat fly in her web.
WORD BANK: commensalism mutualism scavengers population community predator-prey competition food chain decomposer parasitism scavenger
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Answer Key Scavengers 9. Parasitism Community 10. commensalism
Parasitism Mutualism Competition Predator-Prey Food Chain Decomposer Predator-Prey Scavengers Competition Mutualism Population Competition 17. Predator-Prey
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