AMS - Ecology List 1 Flashcards
Abiotic Factors
An abiotic factor is a non-living part of an ecosystem that shapes its environment.
Autotrophs
an organism that serves as a primary producer in a food chain.
Biotic Fatcors
Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria.
Bioaccumulation
Bioaccumulation means an increase in the concentration of a chemical in a biological organism over time, compared to the chemical’s concentration in the environment.
Carbon SInk
A carbon sink is anything that absorbs more carbon from the atmosphere than it releases – for example, plants, the ocean and soil. In contrast, a carbon source is anything that releases more carbon into the atmosphere than it absorbs – for example, the burning of fossil fuels or volcanic eruptions.
Carnivore
A carnivore is an organism that mostly eats meat, or the flesh of animals.
Commensalism
An association between two organisms in which one benefits and the other derives neither benefit nor harm.
Competition
Competition is an interaction between organisms or species in which both require a resource that is in limited supply
Consumer
organisms that consume other organisms to obtain their energy.
Decomposer
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Ecosystem
a biological community of interacting organisms and their physical environment.
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.
Food Chain
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another
Food Web
A food web consists of all the food chains in a single ecosystem.
Habitat
the natural home or environment of an animal, plant, or other organism.