Ecological Organization and Biomes
Trophic Levels
Organism Interactions and populations
Biogeochemical cycles
Succession and Threats to biodiversity
100
The study of ecosystems.What is the definition of ecology?
The study of ecosystems.
100
What is a producer?
Uses light energy to power chemical reactions that make carbohydrates from carbon dioxide and water.
100
What is predation?
When one organism captures and eats another.
100
Which process removes carbon dioxide and releases oxygen?
Photosynthesis
100
Define succession
The replacement of community ecosystems over time.
200
What is the levels of organization?
Organism>population>community>ecosystem>biome>biosphere
200
What is an omnivore?.Heterotroph that eats both plants and animals.
Heterotroph that eats both plants and animals.
200
What is carrying capacity?
The largest population that can be supported in an area without harming the environment.
200
What organisms help consumers obtain nitrogen?
Nitrogen-fixing bacteria
200
What is the climax community?
The last plant community when the area has reached equilibrium.
300
What are some biotic factors?
Animals, bacteria, mushrooms, and plants.
300
How much energy within one trophic level is available in the next.About 10%
About 10%
300
Mutualism is when...
Both species benefit from the relationship.
300
Components of the water cycle
Condensation, evaporation, percolation, precipitation, surface runoff, and transpiration
300
What is primary succession?
The creation of a community ecosystem in an area that has never been colonized.
400
What are some abiotic factors?
Air, heat, precipitation, and sunlight.
400
Primary Producers
What always make up the first trophic level in a food web?
400
Commensalism is when...
One member of the association benefits and the other is neither helped nor harmed.
400
Define percolation
When water soaks into the ground and fills the spaces between rocks and sand.
400
What is secondary succession?
When an established community is disturbed/destroyed and is then replaced.
500
What are the two types of biomes?
Aquatic and terrestrial.
500
What is shown in ecological pyramids?
The relative amount of energy in each trophic level in a given food web.
500
What are limiting factors?
Physical, biological, or chemical factors that can affect the growth or diversity of organisms in an ecosystem.
500
Why is nitrogen necessary for survival?
Nitrogen is an essential component of proteins and nucleic acids.
500
What are pioneer species?
They are the first species to colonize an area.
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