BIO UNIT 12

pertaning to the non-living components of an environemnt (e.g., light, temperature, nutrients)

mass of organisms; standing crop

pertaining to the organisms in an environment

interacting populations of different species that occur in the same habitat

an interaction between two orgnisms that simultaneously require the same resource

organisms that obtain their energy and nutrietns by degrading organic matter

a graphic representation of the trophic structure of an ecosystem in which numbers or biomass are represented in a pyramid, with the producer level forming the base and successive levels of consumers above it

the organisms and non-living componets of the physical enivronment at a particular site

a graphic representation of the interconnected feeding relationships among organims in a community

the physical space occupied by an organism

the ecological role of a species in an environment (characterized by both biotic an abiotic elements)

an interaction between organisms in which one organism (prey) is consumed by the other (predator)

an organism that is killed for food by another organism

an organism that kills other organisms for food

organisms for feed on prducers; herbivores

autotrophs; priamrly photosynthetic organisms that synthesize organic substances from inorganic materials

organism that eat other consumers; carnivores

position in the food chain

the organization of a community based on the feeding relationships of the component populations