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Ecology test 2018
Preparation for ecology unit test 2018
| Question | Answer |
|---|---|
| Biosphere | all the land, water, air and organisms on Eath |
| Evergreen trees in a forest | Biotic factor |
| Desert | Biome with least amount of precipitation |
| Mutualism | Ants that protect a tree on which they feed |
| Population distribution | Pattern of spacing between individual of a population |
| Unequal heating of Earth's surface | Affect Earth's climate regions, causes winds, drive ocean currents |
| Non-native species | Disturb ecosystem because they compete for resources |
| Microclimate | Climate conditions in a small area that differ from surrounding climate |
| Mutualism | Interaction where both species benefit |
| Photic zone | layer of an aquatic ecosystem where light is available for photosynthesis |
| Population example | All red foxes in a forest |
| Warm air rising, cool air sinking causes | global wind patterns |
| Energy transfers in a food web are shown as | Arrow from species being eaten to the species eating |
| This can affect climate in a small area | Natural features such as alake |
| Stiltgrass in Pennsylvania | non-native plant species; reduces native plant populations |
| What is the next largest ecological level in this list: organism-population-community | Ecosystem |
| Limiting factor | controls growth and population size |
| Example of density-dependent limiting factor | disease that kills bats in a cave |
| Climate | produces wide range of environmental conditions |
| Trophic level | term for step in energy transfer and matter in a food web |
| Pyramid of biomass | shows amount of living tissue at each trophic level |
| Bacteria converting nitrogen gas into ammonia | nitrogen fixation |
| movement of water from Earth's surface to atmosphere and back | water cycle |
| Chemicals being used again and again | Means matter is recycled through the biosphere |
| Value of biodiversity | provides foods, medicines and is a natural resource |
| Decomposers | get nutrients buy breaking down wastes and dead organisms |
| Food web | interconnected feeding relationships in a an ecosystem |
| Ozone depletion | caused by release of CFCs (chlorofluorocarbons) |
| A seal population is not likely to be limited by, what? | a drought |
| Example of density-independent limiting factor | fire |
Created by:
ccarlough
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