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Ecology

chapter 18

QuestionAnswer
ecology the study of the interactions of living organisms with one another and with their environment
biotic describes living factors in the environment
abiotic describes the non-living part of the environment including water, rocks, light and temperature
population a group of organisms of the same species that live in a specific geographic area
community all the populations of species that live in the same habitat and interact with each other
ecosystem a community of organisms and their abiotic environment
biosphere the part of Earth where life exists
herbivore an organism that eats only plants
carnivore an organism that eats animals
omnivore an organism that eats both plants and animals
food chain the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms
food web a diagram that shows the feeding relationships between organisms in an ecosystem
energy pyramid a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain
carry capacity the largest population that an environment can support at any given time
prey an organism that is killed and eaten by another organism
predator an organism that eats all or part of another organism
symbiosis a relationship in which two different organisms live in close relationship with each other
mutualism a relationship between two species in which both species benefit
commensalism a relationship between two organism in which one organism benefits and the other is unaffected
parasitism a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed
coevolution the evolution of two species that is due to mutual influence, often in a way that makes the relationship more beneficial to both species
Created by: lsvocab