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

Parts of a habitat that are or once alive

Nonliving parts of an organism’s habitat

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 live in a particular area along with the nonliving 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

An 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 can’t make its own food and obtains energy by feeding on other organisms

Consumers that only eat other animals

A carnivore that feeds on the bodies of dead organisms

Consumers that only eat plants or other photosynthetic organisms

Organisms that eat both plants and animals

Organisms that break down biotic waist and other organisms

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

Contains many overlapping food chains in an ecosystem

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

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

An organism that makes its own food

An organism that has to get its food from a source and is unable to make its own food

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 is neither harmed nor helped

A relationship in which both species is benefited

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

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Ecosystems

Term	Definition
Organism	A living thing
Habitat	An environment that provides the things a specific organism need to live, grow and reproduce
Biotic factor	Parts of a habitat that are or once alive
Abiotic factor	Nonliving parts of an organism’s habitat
Species	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 live in a particular area along with the nonliving 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	An 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 can’t make its own food and obtains energy by feeding on other organisms
Carnivores	Consumers that only eat other animals
Scavenger	A carnivore that feeds on the bodies of dead organisms
Herbivores	Consumers that only eat plants or other photosynthetic organisms
Omnivores	Organisms that eat both plants and animals
Decomposers	Organisms that break down biotic waist and other organisms
Food chain	A series of events in which one organism eats another and obtains energy and nutrients
Food web	Contains 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
Photosynthesis	The set of chemical reactions plants use to turn light, water and nutrients into oxygen and energy, in the forms of sugar
Autotroph	An organism that makes its own food
Heterotroph	An organism that has to get its food from a source and is unable to make its own food
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 is neither harmed nor helped
Mutualism	A relationship in which both species is benefited
Parasitism	A relationship that involves one organism living with, on, or inside another organism and harming it.

Created by: user-1979165

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