1. Honors Chapter 6: Ecosystem Balance Review

2. Consumers that actively hunt other living organisms are called_________.
predators

3. This is why new species are able to form on islands
Large niche diversity, no competition, no predators

4. This might happen after a forest fire
Secondary succession

5. The organism that is being eaten
prey

6. Give an example of a mutualistic relationship
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Give an example of a mutualistic relationship

7. What two organisms make up a lichen?
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What two organisms make up a lichen?
Fungi & Algae

8. T/F Prey population follows predator population in size
False

9. What two factors determine a terrestrial biome?
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What two factors determine a terrestrial biome?
Temperature & Rainfall

10. What is the most diverse terrestrial biome?
Tropical Rain Forest

11. A community that does not undergo further succession is called
Climax Community

12. One organism benefits the other is harmed
Parasitism

13. Compare & contrast the desert & the tundra
Both receive little rainfall however desert is hot & the tundra is cold

14. Bare Rock, Glaciers retreating
Primary succession

15. Describe the steps of primary succession
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Describe the steps of primary succession
Bare rock, lichens, soil formation, grasses, shrubs, seedlings, large mature trees.

16. Give an example of commensalism
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Give an example of commensalism

17. Why are there so many birds in an island community
B/C they can get there easier than other animals b/c of flight

18. T/F If an ecosystem goes out of balance, it cannot adjust to regain the balanced state.
False

19. Give an example of a parasitic relationship
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Give an example of a parasitic relationship

20. 75% of Earth’s biomass is contained in
forests

21. An increase in a predator population will directly result in
A decrease in the prey population

22. Describe the difference between predation & parasitism
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Describe the difference between predation & parasitism

23. When would you find populations of host organisms parasitized?
When they are overcrowded

24. Describe the Chaos theory
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Describe the Chaos theory

25. An organism that feeds on the body fluids or tissues of another organism but does not kill it is called a _________________.
Parasite

26. Name the three different types of forests
Deciduous
Coniferous
Rain

27. Which biome do you live in?
Deciduous Forest

28. What are two theories that explain how the dinosaurs became extinct?
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What are two theories that explain how the dinosaurs became extinct?
Large comet or asteroid & Changing climate

29. Which stage of succession has a high evaporation rate?
Grass

30. Describe the process of aquatic succession
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Describe the process of aquatic succession

31. Which stage of succession is more biodiverse?
Forests

32. T/F Most communities never reach a climax stage
TRUE

33. Any relationship in which two species live closely together & at least one species is benefitting.
Symbiosis