Name: _______________________________ Date ...



Name: _______________________________ Date: _____________ Block: _________

Review for Ecology Test

****** 1. Know all Ecology Vocabulary from Glossary AND use the studying checklist to help guide you as you review your notebook! Also, know the 6 characteristics of life and 6 needs of living things.

2. What is the difference between a biotic and an abiotic factor?________________________

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3. What is the ultimate source of energy in most ecosystems? ____________________________

Why is energy so important in an ecosystem? __________________________________________

_________________________________________________________________________________

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4. What 3 roles do organisms play in an ecosystem?

________________________ ________________________ __________________

What do each of these do?

_________________________________________________________________________________

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5. What is the difference between a food chain and a food web?

_________________________________________________________________________________

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6. What are the names of the different trophic levels in an food/energy pyramid?

1. _______________________ or ______________________

2. _______________________ or ______________________ or _____________________

3. _______________________ or ______________________ or _____________________

4. _______________________ or ______________________ or _____________________

7. What is being passed on in a food chain? _____________________

8. What does an energy pyramid show you? ___________________________________________

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9. Why is an energy pyramid wide at the bottom and narrow at the top? ___________________

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10. Give 3 reasons why plants are important to us.

a. ____________________________________________________________

b. ____________________________________________________________

c. ____________________________________________________________

11. What happens during photosynthesis? _____________________________________________

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12. Draw a simple picture or describe the main points of each cycle in the spaces below:

|CARBON |NITROGEN |WATER |

| | | |

| | | |

| | | |

| | | |

| | | |

| | | |

| | | |

| | | |

13. Describe the 6 ways that organisms can interact in an ecosystem (the 6 relationships).

- predation: ________________________________________________________________

- competition: ______________________________________________________________

- cooperation: _______________________________________________________________

- symbiosis

o mutualism: ___________________________________________________________

o commensalism: _______________________________________________________

o parasitism: ___________________________________________________________

14. List the 6 ecological levels in order, from largest to smallest.

Biosphere (______________(______________(______________(______________(organism

15. Identify and define the 3 types of symbiosis and give 1 examples of each.

|Type of Symbiosis |Examples |

|1. | |

|2. | |

|3. | |

16. WORLD BIOMES: Match the descriptions of Earth’s biomes in the right-hand column with the name of the biome in the left-hand column.

| |Letter |

| |Biome Descriptions |

| | |

|Biomes | |

| |rainfall all year, warm all year, infertile soil, huge number of plant and animal species |

|A. deciduous forest | |

| | |

|B. desert |thick fertile soil, grasses of different heights, large number of herbivores |

| | |

|C. freshwater | |

| |consists of lakes, ponds, rivers and streams |

|D. grassland | |

| | |

|E. marine |long cold winter, short summer, plants are moss & lichen, ground is frozen most of the year (permafrost) |

| | |

|F. coniferous forest | |

| |Earth’s oceans |

|G. tropical rain forest | |

| | |

|H. tundra |has 4 seasons, broadleaf trees that drop their leaves in the fall, fertile soil, moderate precipitation |

| |throughout the year. |

| | |

| | |

| |very hot during the day, very cold at night, very little precipitation |

| | |

| | |

| |long cold winter, short summer, plants are mostly cone-bearing trees with needle-like leaves |

| | |

17. Define succession. ____________________________________________________________

_______________________________________________________________________________

18. Complete the chart below, comparing primary and secondary succession.

| |Primary Succession |Secondary Succession |

|Event that starts it | | |

|Pioneer species (1st organism that | | |

|appears) | | |

|Soil or No soil present at the start? | | |

|Comparative length of time (faster or | | |

|slower) | | |

19. Define limiting factors. _________________________________________________________

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20. List 4 or 5 limiting factors: ______________________________________________________

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21. What are the 2 groups of organisms that are decomposers?

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21. What % of energy is transferred from one trophic level to the next? ________________

22. What happened to all the energy that is not transferred? (be specific) _________________

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23. Match the examples in Column X with the correct level of organization in Column Y.

| |

|Column X Column Y |

|______ a snake A. biome |

|______ all the parrots in an area B. community |

|______ rain forests C. ecosystem |

|______ snakes, monkeys, parrots, flowers, water D. organism |

|______ many different types of trees E. population |

24. The following organisms are part of a food web typically located in and around a reservoir. Questions A- H refer to this food web.

_______________________________________________________________________________

earthworm squirrel rabbit eagle oak tree clover field mouse

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The squirrel eats acorns from the oak tree.

The rabbit and field mouse eat clover.

The eagle eats rabbits, field mice and squirrels.

The earthworm breaks down acorns and clover into substances that enrich the soil.

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A. Draw the food web that these organisms make up.

B. Which member of the food web is a carnivore?

a. field mouse b. eagle c. rabbit d. squirrel

C. Which member of the food web is a producer?

a. earthworm b. rabbit c. clover d. eagle

D. Which member of the food web is a primary consumer?

a. oak tree b. field mouse c. eagle d. clover

E. Which member of the food web is a secondary consumer?

a. field mouse b. squirrel c. eagle d. rabbit

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