1. Relationships in Ecosystems
Label #1-17 in your notes. For each statement write the word from the word bank that best describes the relationship.

2. 1. Vultures gather around a dead deer.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

3. 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 producer
food chain decomposer
parasitism organism

4. 3. A tick feeds on your dog.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

5. 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

6. 5. Mice feed on acorns; owls feed on mice.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

7. 6. A pond frog catches a nice fly on his sticky tongue.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

8. 7. The dandelions and your lawn are trying to grow in the same space.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

9. 8. Mule deer live in the forest behind my house.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

10. 9. A bacteria causes your throat to be sore.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

11. 10. An orchid attaches itself to a tree branch without doing the tree any harm.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

12. 11. A poisonous sea anemone gives protection to a fish, but feeds on the predators that come after it.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

13. 12. A mountain lion stalks a young deer.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

14. 13. A fungus grows on a rotting log.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

15. 14. Ants crawl all over a dead worm.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

16. 15. Some bacteria live and get their nourishment inside your intestines, and help keep them healthy.
WORD BANK:
commensalism mutualism
scavenger population
community predation
competition producer
food chain decomposer
parasitism organism

17. 16. Weeds and young corn plants try to grow in the same garden.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

18. 17. A spider traps a fat fly in her web.
WORD BANK: commensalism mutualism scavenger population community predation competition producer food chain decomposer parasitism organism

19. 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