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Ecology/Environments
Animals/Plants/Trees/Living Things/Environments!!!
Term | Definition |
---|---|
organism | a living thing that interacts with living and nonliving parts of its habitat |
biotic factors | the living parts of a habitat |
abiotic factors | the nonliving parts of an organisms habitat |
list the abiotic factors | water, sunlight, oxygen, temperature, soil |
species | a group of organisms that are physically similar, and can mate with each other & produce offspring that can also mate and reproduce |
populations | all the members of one species in a particular area |
communities | all the different populations that live together in an area make up a community |
habitat | an environment that provides the things the organism needs to live, grow, and reproduce |
ecosystem | the community of organisms that live in a particular area, along with their nonliving surroundings, make up an ecosystem |
ecology | the study of how living things interact with each other and their environment |
limiting factors | An environmental factor that causes a population to decrease, such as amount of food, water, space, climate conditions, humans building homes, etc. |
competition | the struggle between organisms to survive as the attempt to use the same limited resource |
carrying capacity | The largest population that an environment can support |
predation | an interaction in which one organism kills another for food |
symbiosis | a close relationship between two species that benefits at least one of the species |
mutualism | a type of symbiosis where both species benefit |
commensalism | a type of symbiosis where one species benefits and the other is not harmed |
food chain | a series of events in which one organism eats another and obtains energy |
food web | the pattern of overlapping food chains in an ecosystemenergy |
energy pyramid | a diagram that shows the amount of energy that moves from one feeding level to another in a food web |