|nonliving, not from a living organism
|the movement of atoms and molecules from living organisms and the physical environment
|a living organism or produced by a living organism.
|the movement of carbon from the nonliving environment into living things and back.
|a relationship between two organisms in which one organism benefits and the other is unaffected.
|ecological relationship in which two or more organisms depend on the same limited resource.
|a organism that eats other organisms or organic matter.
|an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients.
|the study of the interactions of living organisms with one another and with their environment.
|a community of organisms and their abiotic, or nonliving, environment.
|a triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain.
|the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms.
|a diagram that shows the feeding relationships between organisms in an ecosystem.
|an environmental factor that prevents an organism or population from reaching its full potential of size or activity.
|a relationship between two species in which both species benefit.
|an organism that benefits from another species, the host, which is harmed.
|a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed.
|when a predator feeds on prey
|an organism that kills and eats all or part of another organism.
|an organism that is killed and eaten by another organism.
|an animal that feeds on plants; a herbivore Any organism that consumes or feeds on autotrophs or decaying matter.
|an organism that can make its own food by using energy from its surroundings.
|a carnivore that feeds only on herbivores An organism that largely feeds on primary consumers
|a relationship in which two different organisms live in close association with each other.
|An organism that largely feeds on secondary and primary consumers.
|position in the food chain
| the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation.