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Ecology
Succession, Aquatic Ecosystems, Biodiversity, and Resources
| Question | Answer |
|---|---|
| What is a density dependent factor? | Factors that affect an ecosystem that are affected by the density of the population (number of people in the population change the effect) |
| What is a density independent factor? | Factors that affect an ecosystem that are NOT affected by the density of the population (number of people in the population does not change the effect) |
| What are the four factors that affect the size of a population? | Birth rate, death rate, infant mortality, and immigration/emigration |
| What is primary succession? | how an ecosystem gets created that was previously uninhabited, starts with rocks and the simplest organisms and builds to more complex plants |
| What is secondary succession? | Re-establishment of a damaged ecosystem |
| What aquatic ecosystem where there is air, sun, and water exposure with crashing waves? | Intertidal zone |
| What aquatic ecosystem with water depth less than 200 m, lots of sunlight, and warm water? | Neritic zone |
| What aquatic ecosystem has very deep water, no light, and cold water except near thermal vents that emit heat and chemicals? | Benthic zone |
| What aquatic ecosystem is formed when a river meets a large body of salt water such as ocean or sea? | estuaries |
| What aquatic ecosystem where only a small amount of light penetrated the water and plants do not grow here? | oceanic dysphotic zone |
| What aquatic ecosystem is the top layer, nearest the surface of the ocean where light penetrates the water to allow photosynthesis? | oceanic photic zone |
| What is biodiversity? | the number of different types of species in an ecosystem. |
| What is a species? | All organisms capable of breeding freely with each other under natural conditions |
| An ecosystem with what type of diversity is more sustainable? | high species diversity |
| What human actions decrease biodiversity? | Causing loss of habitat, introduction of invasive species, over-harvesting of wild populations, over-fishing, pollution |
| What is a renewable resource? | Resources that we can get back in a short time |
| What is a nonrenewable resource? | Resources that take a long time to regenerate. |
| What are types of renewable resources? | Solar, hydro, wind, biomass, geothermal, plant/animal energy |
| What are types of nonrenewable resources? | Coal, oil, natural gas, nuclear power |
| Know the main advantages and disadvantages of resources. | Go back to your notes. |
Created by:
zahnsg
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