Terms in this set (25)
Scientific study of interactions among organisms and between organisms and their environment
An organism that obtains energy by feeding on other organisms
Each step in a food chain or food web
All the different populations that live together in an area
A community of organisms where there are several interrelated food chains
A biological community of interacting organisms and their physical environment.
process in which chemical energy is used to produce carbohydrates
the movement of water through the biosphere
A group of ecosystems that share similar climates and typical organisms
A series of steps in which organisms transfer energy by eating and being eaten
process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another
Describes living things in the environment.
A consumer that eats only plants.
Process of converting nitrogen gas into ammonia
A consumer that eats only animals.
total amount of living tissue within a given trophic level
the variety of life in the world or in a particular habitat or ecosystem.
An animal that eats both plants and animals
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
A species that influences the survival of many other species in an ecosystem
organism that feeds on plant and animal remains and other dead matter
An organism that can make its own food.
An organism that breaks down wastes and dead organisms
Species that does not rely on a single source of prey
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