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Ecology the study of the interactions of living organisms with one another and their environment
Biotic describes living factors in the same environment
Abiotic describes the nonliving part of the environment including water, rocks, light, and temperature
5 levels of environmental organization organism, population, community, ecosystem, biosphere
Organism a living thing; anything that can carry out life process independently
Population a group of organisms of the same species that live in a specific geographical area
Community all of the populations of species that live in the same habitat and interact with each other
Ecosystem a community of organisms and their abiotic ,or nonliving, environment
Biosphere the part of Earth where life exists
Producer/Autotroph an organism that can make its own food by using energy from its surroundings
Consumer/Heterotroph an organism that eats other organisms or organic matter
Herbivore an organism that eats only plants
Carnivore an organism that eats only animals
Omnivore an organism that eats both plants and animals
Scavenger an organism that preys on dead animals
Decomposer an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Food Web a diagram that shows the feeding relationships between organisms in an ecosystem
Food Chain the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organism
Energy Pyramid a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystems food chain
Limiting Factor a resource that is so scarce that it limits the size of a population
Carrying Capacity the largest population that an environment can support at any given time
Predator an organism that kills and eats all or part of another organism
Prey an organism that is killed and eaten by another organism
Predator Adaptations methods that predators use to catch their prey
Prey Adaptations methods that preys use to not get caught by the predator
Symbiosis a relationship in which two different organisms live in close association with each other
Mutualism a relationship between two species in which both species benefit
Commensalism a relationship between two organisms in which one organism benefits and the other is unaffected
Parisitism a relationship between two species in which one species, the parasite, benefits, from the other species, the host, which is harmed
Created by: 200320744