APES Unit 2 Section 1 Study Guide
APES Ch. 3 (and part of 12) Study Guide
Write a brief definition for each word.
|Species |Herbivore |Soil profile vs. horizon |
|Biotic vs. abiotic |Carnivore |Loam |
|Limiting factor |Detrivore |Humus |
|Range of tolerance |Decomposer |GPP vs. NPP |
|Producer vs. consumer |Closed vs. open system |Leaching |
|Food chain vs. food web |Greenhouse effect |Scavenger |
|Trophic level |Percolation vs. infiltration |Autotroph vs. heterotrophy |
| | |HIPPO |
|Discussion Questions. Must answer each in complete sentences. |
|Describe the following soil horizons. (O, A, B, C) |Contrast the flow of matter and the flow of energy through the biosphere. |
|Contrast sand, silt, and clay. |Define abiotic component of an ecosystem. List one important physical |
|Define ecology. List and distinguish among the five levels of organization of matter|factor and one important chemical factor that has a large effect on |
|that are the focus of the realm of ecology. |ecosystems. |
|Describe how the sun and gravity power the water cycle. |Compare limiting factors in terrestrial and aquatic ecosystems. |
|Why are food chains generally 10% efficient from one trophic level to the next? |Which ecosystems show the highest average net primary productivity? |
|Math Problems: Show all work and circle your answers. Remember: NPP = GPP – Respiration |
|The net annual primary productivity of a particular wetland ecosystem is found to be 8,000 kcal/m2. If respiration by the aquatic producers is 12,000 kcal/m2 |
|per year, what is the gross annual primary productivity for this ecosystem, in kcal/m2 per year? |
|If you measure the available biomass for a patch of forest as 10 kg C/ m2-year, and the amount of CO2 given off into the atmosphere as 5 kg C/ m2-year, what is |
|the GPP? |
|In the patch of forest in problem #2, how much energy is available in the primary producer level for herbivore consumption? Assume 1 kg of carbon produces |
|10,000 kJ. |
|If the forest contains 200 kg of plant material, approximately how many kg of herbivore production can be supported? (assume the ecological rule of thumb or 10%|
|rule) |
|How many kg of carnivore production can be supported? |
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