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Lesson 1 to 4

Organism an individual animal, plant, or single-celled life form.
Habitat the natural home or environment of an animal, plant, or other organism.
Biotic factor A biotic factor is a living organism that shapes its environment.
abiotic factor An abiotic factor is a non-living component in the environment.
population all the inhabitants of a particular town, area, or country.
community a group of people living in the same place or having a particular characteristic in common.
ecosystem a biological community of interacting organisms and their physical environment.
limiting factor the factor that limits the reaction rate in any physiological process governed by many variables
resources a stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function .
density the degree of compactness of a substance.
producer Producer: is an organism, either a green plant or bacterium, which is part of the first level of a food chain. .
consumer Consumer: is an organism that feeds on plants or other animals for energy.
deconsumer Decomposer: is an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler
food web A food web consists of all the food chains in a single ecosystem
food chain a hierarchical series of organisms each dependent on the next as a source of food.
energy pyramid An energy pyramid is a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
role the function assumed or part played by a person or thing in a particular situation.
niche An ecological niche is the role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces.
competition Competition is an interaction between organisms or species in which both the organisms or species are harmed
predation the preying of one animal on others.
Symbiois interaction between two different organisms living in close physical association, typically to the advantage of both.
commensalism an association between two organisms in which one benefits and the other derives neither benefit nor harm.
Mutualism the doctrine that mutual dependence is necessary to social well-being.
Parasitism the practice of living as a parasite in or on another organism.
interactions takes place among organisms every day
Succession a number of people or things sharing a specified characteristic and following one after the other.
pioneer species The pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been
Colonize (of a country or its citizens) send a group of settlers to (a place) and establish political control over it
Dominate have a commanding influence on; exercise control over.
Created by: TTVJason



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