Download 1. Identify what components of an ecosystem are

Ecology Review
1. Identify what components of an ecosystem are not part of a community.
2. Explain or relate how gardening or agriculture affects succession.
3. 1000 years or more while secondary succession may only take 100 years. Why?
4. List some characteristics of a pioneer species.
5. List the following from smallest to largest:
Cell, biome, macromolecule, ecosystem, atom, organ, population, molecule, tissue, individual, organ system,
community
6-10
___1_____2_____3_____4____
You have a food chain with 4 slots. In which slot would you place:
6 A wolf #7. A primary consumer
#8. A producer
#9. A carnivore
10. What is the difference between producers and consumers?
11. Given the following organisms make a food web.
Bear, berries, sun, deer, algae, fish, mushrooms, earthworms, grass, mouse, snake, hawk
12 -15
Look at the food web on page 75. Identify the following:
12. All the organisms on the 2nd trophic level
13. All the organisms that eat on or above the 5th trophic level.
14. All the organisms that are tertiary consumers
15. All the organisms that are omnivores
16.
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21.
Name the producer(s) on this web.
Name the heterotrophs on this food web
If a food web shows the flow of energy, where is the energy coming from?
What is an easy way to tell what the autotrophs are in this food web?
Are there any organisms that conduct photosynthesis in this food web. If so, which one(s)?
Are there any organisms that conduct cellular respiration in this food web. If so, which one(s)?
22. Look at your food web in #11 If a chemical company is dumping a herbicide into the lake that the algae
and fish live in, what will be affected and how?
23. Explain why scientist believe that most animals would become extinct if all plants died.
24. If the sun provides a plant with 25,000 J of sunlight, how much of that energy would be available in the
tertiary consumer?
25. You can eat 800 calories by having an 8 oz porterhouse steak or 10 slices of bread. Which 800 calories
originally required more sunlight to produce? Explain.
26. Fill in the following chart:
Relationship
Predation
Symbiosis? ++, +-, +0
No
Mutualism
Yes
Commensalism
Parasitism
27 . What is the definition of symbiosis?
Define
example