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Ecology Terms

dichotomous key a classification system to categorize and compare organisms
ecology branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
population A population is a group of individuals of the same species inhabiting the same area.
community interacting species living in the same place.
ecosystem a biological community of interacting organisms and their physical environment.
biotic factors Living things: Ex.'s Plants, Animals, Fungi, Bacteria, Fish, Alga, Seaweed
abiotic factors Non Living things: Ex.'s Waterways, Soil, Sun, Wind, Rain, Temperature
Symbiosis Relationship close relationship between two species in which at least one species benefits.
Mutualism a relationship between two organisms of different species "work together," each benefiting from the relationship.
Commensualism a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
Parasitism a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
Autotroph Producers - Make their own food. Ex . Plants, Lichen, Algae
Heterotroph Consumers- Must obtain/eat Food to get Energy
Primary Consumers Organisms that Eat Producers
Secondary Consumers Organisms that Eat Primary Consumers. Usually are Carnivores.
Decomposers Organism that decomposes Organic Material. Ex. Fungus, Mushroom, Bacteria
Scavengers An animal that feeds on dead plant material. Ex. Vultures, Coyotes
Arrows in a Food Chain/Web Shows Transfer of Energy
Energy Pyramids Shows how energy flows - 10% Rule - Each trophic Level Loses 10 % of Energy as it goes up - ENERGY IS NOT RECYCLED
Biomass Pyramid Shows living mass in each trophic level
Ecological Pyramid Shows the Relationship between different organisms
Created by: mdoherty0199
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