Ecosystems 1 Flashcards
(16 cards)
A living thing
Organism
An environment that provides the things a specific organism need to love, grow, and reproduce.
Habitat
A living or once living part of an organisms habitat.
Biotic factor
A non living part of an organisms environment.
Abiotic factor
All the members of one species living in the same area.
Population
All the different populations that live together in a certain area.
Community
The community of organisms interact with eachother and their environment.
Ecosystem
An environmental factor that causes a population to decrease in size.
Limiting factor
An organism that can make its own food.
Producer
An organism that obtains energy by feeding on other organisms.
Consumer
An organism that gets energy by breaking down biotic wastes and dead organisms and returns raw materials to the soul and water.
Decomposer
A series of events in an ecosystem which organisms transfer energy by eating and by being eaten.
Food chain
The pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem.
Food web
A diagram that shows how amount of energy that moves from one feeding level to another in a food web.
Energy pyramid
The number of individuals in an area of a specific size.
Density
Food, water shelter and other things from the environment that help organisms live, grow and reproduce.
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