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Ecology

Mr Camp - Topic 6

TermDefinition
abiotic nonliving parts of the environment ex: soil, CO2, O2, temperature, water, sunlight
autotroph organism that produces its own food, aka producer, the source of energy for all other living things on Earth
biodiversity variety of species in an area
biosphere all of the Earth's ecosystems, inhabited portions of the Earth, includes all of the land, air and water in which organisms survive
biotic the living parts of the environment
carnivore organism that survives be eating other animals(herbivores)
carrying capacity the largest population of any single species that an area can support
community a combination of different populations that live and interact in the same environment
competition the struggle between organisms for the same limited resources in a articular area, occurs when niches overlap
consumer an organism that obtains its energy from predators
decomposer an organism, generally an bacterium(bacteria) or fungus, that consumes dead organisms and organic waste and returns the nutrients to the soil/water for producters(autotrophs)
ecology the study of how living things interact with one another and with their environment
ecological niche the specific role played by an existing community is replaced by another community
ecological succession the process by which an existing community is replaced by another community
ecosystem all the living and nonliving things that interact n a specific area; a subdivision of the environment
energy pyramid a diagram used to show how food energy flows through the ecosystem
environment every living and nonliving thing that surrounds an organism
food chain a representation that identifies the specific feeding relationships among organisms
habitat the place where an animal or plant lives
herbivore organism that eats only plants, a.k.a. primary consumer, receives 10% of energy from the producers(autotrophs)
host the organism in a parasitic relationship that provides a home and/or food for the parasite
limiting factors any factor in the environment that limits the size of a population
parasite an organism that survives by living and feeding on other organisms
population all the individuals of a single species that live in a specific area
predator an animal that hunts and kills other animals for food
prey an animal that is hunted and killed by predators
producers organisms that makes its own food from light energy and inorganic materials such as CO2 & H2O
scavenger a carnivore that feeds on the remains of dead organisms
Created by: mrcamp