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ECOLOGY
SLHS ECOLOGY UNIT
| Question | Answer |
|---|---|
| As the trophic levels become successively higher, does the number of organisms increase or decrease? | Decreases |
| As the trophic levels become successively higher, does the amount of total energy increase or decrease? | Decreases. |
| If the grass contains 1000 Cal of energy, what amount of available energy is used by the snake belonging to the food chain: grass-grasshopper-frog-snake? | 1 Cal |
| Where does most of the energy for all of the food webs in the biosphere come from? | The sun |
| When organisms die, what group of organisms prevents the environment from being overwhelmed by the bodies of these organisms? | Decomposers |
| If grassland becomes somewhat drier, what biome might it change into? | Desert |
| What term is used to identify any living parts in an ecosystem? | Biotic Factors |
| What term is used to identify any nonliving parts of an ecosystem. | Abiotic Factors |
| An organism that eats animals as its primary source of energy. | Carnivore |
| The life supporting portion of the Earth composed of air, land, and water. | Biosphere |
| An organism that is able to synthesize food using solar energy or energy stored in chemical compounds. | Autotroph |
| A stable mature community that undergoes little ecological succession. | Climax Community |
| What is the study of relationships or interactions between organisms and their environment called? | Ecology |
| This includes all of the populations in a community and their physical surroundings. | Ecosystem |
| Large areas of the earth or ocean with the same climax community of organism. | Biome |
| What is a group of organisms of the same species that live in the same place called? | Population |
| This is a collection of several interacting populations. | Community |
| This is an abiotic factor in an ecosystem and is the place where an organism lives its life. | Habitat |
| This biome can be found in high elevations or near the earth's poles and receives an average precipitation of 50cm and an average temperature of -10 degrees Celsius. | Tundra |
| This biome has conifer trees as a primary biotic factor and receives an average precipitation of 150cm and an average temperature of 0 degrees Celsius. | Taiga |
| This biome is found near the equator and has the most diverse life forms on the planet with an average temperature of 25 degrees Celsius and an average precipitation of 350cm. | Rain forest |
| This biome has leafy trees with an average temperature of 13 degrees Celsius and an average precipitation of 175cm. | Deciduous forest |
| This biome surrounds Denver CO and has an average temperature of 10 degrees Celsius and an average precipitation of 75cm. | Grassland |
| This biome has a large population of organisms that are nocturnal and has an average temperature of 15 degrees Celsius and an average precipitation of 20cm. | Desert |
| What is the name for a network of pathways showing all of the possible ways energy can move from one trophic level to another? | Food Web |
| These are carnivorous organisms like vultures that feed on dead organisms. | Scavenger |
| Organisms that eat or consume others for their food. | Consumer |
| Organisms that use sunlight to make food through photosynthesis. | Producer |
| Organism that eats plants as its primary source of energy. | Herbivores |
| A symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited. | Commensalism |
| A symbiotic relationship in which both species benefit. | Mutualism |
| A symbiotic relationship in which neither organism benefits as a result of limited resources. | Competition |
| A symbiotic relationship in which one organism derives benefit at the expense of the other. | Parasitism |
| The relationship in which there is a close and permanent association between organisms of different species. | Symbiosis |
| The maximum stable population size an environment can support over time. | Carrying capacity |
| What is it called when an organism moves into an area. | Immigration |
| What is it called when an organism moves out of an area? | Emmigration |
| This means equilibrium or balance of nature in an ecosystem. | Homeostasis |
Created by:
rrosset
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