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22 Cards in this Set
- Front
- Back
What is the ultimate source of energy? |
Sunlight |
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What types of organisms can be found at each trophic level? |
1st: producers 2nd: primary consumers 3rd: secondary consumers (omnivores) 4th: tertiary consumers (carnivores) |
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What do the arrows represent in a food chain or web? |
He flow of energy and who eats who. |
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How does energy flow through a system? |
10% rule |
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What are the levels of organization from lease encompassing to most? |
Species ---> population ---> community ---> ecosystem ---> biome ---> biosphere |
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Why can't there be more than 4 or 5 levels in any single food chain? |
Once you get to a higher level there's not enough energy |
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10% rule? |
Roughly 10% of energy is transferred from level to the next. 90% as lost as heat into the environment |
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Niche? |
The role a species plays in a community; it's total way of life |
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Limiting Factor? |
In need biotic or abiotic factor that restricts the existence of organisms and specific environment a little too long |
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Commensalism? |
π/π |
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Parasitism? |
π/π |
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Mutualism? |
π/π |
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Evaporation? |
The process by which water changes from liquid form to an atmospheric gas. This usually happens during the day as sun heats the atmosphere and earth |
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Transpiration? |
It is the evaporation of water from the leaves of plants |
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Condensation? |
Occurs when moist air begins to cool and water droplets form into clouds |
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Precipitation? |
When the water droplets become large enough and when the water returns to the earths surface |
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Runoff? |
The precipitation making its way back to River, stream, ocean or lake |
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Seeps? |
Some of the water goes into the soil and enters plants through the roots and then the process begins again |
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Nitrogen cycle? |
Nitrogen in air - soil - nitrogen fixing bacteria - amonia - nitrates - plants use as form of nitrogen to make their DNA. |
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Where is the phosphorus cycle placed? |
Rock |
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Carrying capacity? |
Maximum Number of organisms that live somewhere based on the food, water, and free space there |
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The two types of succession? |
Primary - pioneer species Secondary - already life there |