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 and that interact.

Nonliving parts of an organism’s habitat.

A species is a group of organisms that can mate with each other and produce offspring.

All members of one species living in a particular area.

All the different populations that live together in an area.

Organisms that lives in a particular area along with the nonliving environment.

Organisms interact with each other and with their environment.

The number of individuals in an area of a specific size .

An environment factor that caused 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.

Obtains energy by feeding on other organisms.

Break 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.

Consists of many overlapping food chains.

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 form of sugars.

Is a green pigment that absorbs light.

An organism that makes its own food.

An organism that has to get its food from another source-and is unable to make its own food.

Consumer that eat only animals.

Carnivore that feeds on the bodies of the dead organisms.

Consumer that eat both plants and animals.

Is any relationship in which two species live closely together.

Is a relationship in which one species benefits and the other species is neither helped nor harmed.

Is a relationship in which both species benefit.

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

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

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Ecosystems

Question	Answer
Organism	Living thing.
Habitat	An environment that provides the things a specific organism needs to live, grow , and reproduce.
Biotic factors	Parts of a habitat that are or were once alive and that interact.
Abiotic factors	Nonliving parts of an organism’s habitat.
Species	A species is a group of organisms that can mate with each other and produce offspring.
Population	All members of one species living in a particular area.
Community	All the different populations that live together in an area.
Ecosystem	Organisms that lives in a particular area along with the nonliving environment.
Ecology	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 environment factor that caused 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	Obtains energy by feeding on other organisms.
Decomposer	Break 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	Consists of many overlapping food chains.
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 form of sugars.
Chlorophyll	Is a green pigment that absorbs light.
Autotroph	An organism that makes its own food.
Heterotroph	An organism that has to get its food from another source-and is unable to make its own food.
Carnivore	Consumer that eat only animals.
Scavenger	Carnivore that feeds on the bodies of the dead organisms.
Herbivore	Consumer that eat only plants.
Omnivore	Consumer that eat both plants and animals.
Symbiosis	Is any relationship in which two species live closely together.
Commensalism	Is a relationship in which one species benefits and the other species is neither helped nor harmed.
Mutualism	Is a relationship in which both species benefit.
Parasitism	Is a relationship that involves one organism living with, on, or inside another organism and harming it.
Competition	The struggle between organisms to survive as they use the same limited resources.

Created by: user-1979081

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