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 non living parts of an organisms habitat.

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

All the members of one species living in a particular area.

All the different populations that live together in an area.

The community of organisms that lives in a particular area along with the non living environment.

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

The number of individuals in an area of a specific size

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

The largest population that an area can support

An organism that can make its own food

Obtains energy by feeding on other organisms

Only feeds on body’s of dead animals

Consumers that eat only plants and other photosynthetic organisms

Break down biotic wastes and dead organisms

Consists of many overlapping food chains in an ecosystem

Shows the amount of energy that moves from one feeding level to another in a food web

A series of events in which one organism eats another and obtains energy

The set of chemical reactions plants use to turn light, water, and nutrients into oxygen and energy

An organism that makes its own food

An organism that has to get its food from a source

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 thing.
Habitat	An environment that provides the things a specific organism needs to live, grow, and reproduce.
Biotic factors	The Parts of a habitat that are or were once alive.
Abiotic factors	The non living parts of an organisms habitat.
Species	A group of organisms that can mate with each other and produce offspring that can also mate and reproduce.
Population	All the members of one species living in a particular area.
Community	All the different populations that live together in an area.
Ecosystem	The community of organisms that lives in a particular area along with the non living environment.
Ecology	The study of how organisms interact with each other and their environment.
Density	The number of individuals in an area of a specific size
Limiting factor	An environmental factor that causes a population to stop growing or to decrease
Carrying capacity	The largest population that an area can support
Producer	An organism that can make its own food
Consumer	Obtains energy by feeding on other organisms
Consumers	Only eat animals
Carnivore	Only feeds on body’s of dead animals
Herbivores	Consumers that eat only plants and other photosynthetic organisms
Decomposers	Break down biotic wastes and dead organisms
Food web	Consists of many overlapping food chains in an ecosystem
Energy pyramid	Shows the amount of energy that moves from one feeding level to another in a food web
Food chain	A series of events in which one organism eats another and obtains energy
Photosynthesis	The set of chemical reactions plants use to turn light, water, and nutrients into oxygen and energy
Chlorophyll	Absorbs light
Autotroph	An organism that makes its own food
Heterotroph	An organism that has to get its food from a source
Niche	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-1979330

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