An environment that provides the things a specific organism needs to live, grow, and reproduce

The parts of a habitat that are or were once alive

The nonliving parts of an organism’s habitat

A group of organisms that can mate with each other and produce offspring

All the members of one species living in a particular area

All the different populations that live together in an area

Organisms that live in a particular area along with the nonliving environment

The study of how organisms interact with each other and with their environment

An organism that can make its own food

The number of individuals in an area of a species size

An environmental factor that causes a population to stop growing or decrease in size

The largest population that an area can support

Obtains energy by feeding on other organisms

Consumers that eat only animals

Consumers that eat both plants and animals

Series of events in which one organism eats another and obtains energy and nutrients

Consists of many overlapping food chains

Shows the amount of energy that moves from one feeding level to another

An organism that makes its own food

An organism that has to get its food from a source

Includes how an organism obtains its food, the type of food the organism eats , and what other organisms eat it

The struggle between organisms to survive as they use the same limited resources

An interaction in which one organism kills another for food or nutrients

Any relationship in which two species live closely together

A relationship in which one species benefits and the other species is neither helped nor harmed

A relationship in which both species benefit

A relationship that involves one organism living with, on, or inside another organism and harming it

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Ecosystems

Term	Definition
Organism	Living things
Habitat	An environment that provides the things a specific organism needs to live, grow, and reproduce
Biotic factor	The parts of a habitat that are or were once alive
Abiotic	The nonliving parts of an organism’s habitat
Species	A group of organisms that can mate with each other and produce offspring
Population	All the members of one species living in a particular area
Community	All the different populations that live together in an area
Ecosystem	Organisms that live in a particular area along with the nonliving environment
Ecology	The study of how organisms interact with each other and with their environment
Producer	An organism that can make its own food
Population Density	The number of individuals in an area of a species size
Limiting factor	An environmental factor that causes a population to stop growing or decrease in size
Carrying capacity	The largest population that an area can support
Consumer	Obtains energy by feeding on other organisms
Carnivores	Consumers that eat only animals
Herbivores	Consumers that eat only plants
Omnivores	Consumers that eat both plants and animals
Food chain	Series of events in which one organism eats another and obtains energy and nutrients
Food web	Consists of many overlapping food chains
Energy pyramid	Shows the amount of energy that moves from one feeding level to another
Chlorophyll	Absorbs light
Autotroph	An organism that makes its own food
Heterotroph	An organism that has to get its food from a source
Niche	Includes how an organism obtains its food, the type of food the organism eats , and what other organisms eat it
Competition	The struggle between organisms to survive as they use the same limited resources
Predation	An interaction in which one organism kills another for food or nutrients
Symbiosis	Any relationship in which two species live closely together
Commensalism	A relationship in which one species benefits and the other species is neither helped nor harmed
Mutualism	A relationship in which both species benefit
Parasitism	A relationship that involves one organism living with, on, or inside another organism and harming it

Created by: user-1979400

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