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Ecology
Levels of Ecology and Food Chains
Term | Definition |
---|---|
biotic fators | Living parts (organisms) of the environment |
abiotic factors | nonliving parts of the environment |
organism | one living thing |
population | a group of individuals of the same species that live in the same place at the same time |
community | includes all of the populations of different species that live and interact in an area |
ecosystem | a community of organisms and their nonliving environment |
biosphere | includes all of the ecosystems |
producer | uses energy to make food |
consumer | an organism that gets it energy by eating other organisms |
decomposer | an organism that gets energy and nutrients by breaking down the remains of other organisms |
herbivore | a consumer that eats only plants |
carnivore | a consumer that eats only other animals |
omnivore | a consumer that eats both plants and animals |
carrying capacity | the maximum number of individuals of one species that the environment can support |
limiting factor | a part of the environment that keep's the population's size below its full potential |
competition | when two or more individuals or populations try to use the same limited resources |
cooperation | individuals working together |
Sun | the source of energy for all living organisms |
food chain | the path of energy transfer through living organisms |
photosynthesis | converting water, carbon dioxide and sunlight into sugars and oxygen |