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A community of organisms interacting with each other and their physical environment
Variety of life found on Earth, measured at the genetic, species, and ecosystem levels.
Non-living part of an ecosystem that plays a role in shaping the environment.
Living organisms in an ecosystem.
Non-living parts of an ecosystem that shape the environment.
The position an organism occupies in a food web.
All of the food chains in a single ecosystem. Each organism is a part of multiple food chains.
Produce their own food using energy from the sun.
Obtains energy by eating other organisms.
Obtains energy while breaking down dead/decaying organisms.
Energy transfer between trophic levels is ineffecient. Only 10% moves to the next trophic level.
A species that exerts strong control on a community. It is not always the most abundant OR the apex predator.
Changes to the structure of an ecosystem resulting from the addition or removal of an animal or plant.
The gradual buildup of toxic substances in the tissue of an organism.
The increase in toxic substances through trophic levels in the tissue of an organism from ingesting other plants or animals.
Anything that slows or stops the growth of a population.
Substance needed for the survival, growth, and reproduction of an organism.
Movement of nutrients between the physical environment and living organisms.
Essential nutrient needed by all organisms. Nitrogen is needed for the formation of proteins.
Essential nutrient needed by all organisms. Phosphorus is a component of several key molecules including DNA.
Acid Mine Drainage
Formation and leaking of highly acidic water containing high levels of metals from abandoned mine sites.
Contaminated mine waste.