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

Parts of a habitat that are or were once alive

The non living 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

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 with their environment

The number of individuals in an area of a specific size

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

The largest population that an area can support

An organism that can make its own food

An organism that obtains energy by feeding on other organisms

A consumer that eats only animals

A carnivore that feeds on bodies of dead organisms

A consumer that eats only plants

A consumer that eats both plants and animals

An organism that breaks down biotic wastes and dead organisms, returning the raw materials to the ecosystem

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

A diagram that shows the amount of energy that moves from one feeding level to another in a food web.

A 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

The role of an organism in its habitat

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 benefits

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

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Ecosystem

Term	Definition
Organism	Living thing
Habitat	An environment that provides the things a specific organism needs to live, grow, and reproduce
Biotic Factor	Parts of a habitat that are or were once alive
Abiotic Factor	The non living 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	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 with their environment
Population density	The number of individuals in an area of a specific size
Limiting factor	Am environmental factor that causes a population to stop growing or to decrease in size
Carrying capacity	The largest population that an area can support
Producer	An organism that can make its own food
Consumer	An organism that obtains energy by feeding on other organisms
Carnivore	A consumer that eats only animals
Scavenger	A carnivore that feeds on bodies of dead organisms
Herbivore	A consumer that eats only plants
Omnivore	A consumer that eats both plants and animals
Decomposer	An organism that breaks down biotic wastes and dead organisms, returning the raw materials to the ecosystem
Food chain	A series of events in which one organism eats another and obtains energy
Food web	Many overlapping food chains
Energy pyramid	A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
Photosynthesis	A 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	The role of an organism in its habitat
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 benefits
Parasitism	A relationship that involves one organism living with, on, or inside another organism and harming it.

Created by: user-1979321

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