Food, water shelter, and other things from its environment that it needs to live ,grow, and reproduce

A habitat that are or were once alive

No 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 one area

The community of organisms that lives 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 decrease

The largest population that an area can support

The role of an organism in its habitat

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

Which one organisms kill another for food or nutrients

Any relationship in which two species live closely together

One species benefits and the other species is neither helped nor harmed

A relationship on which both species benefit

One organism living with, on, or inside another organism and harming it

An organism that can make its own food is a producer

Obtains energy by feeding on other animals

Consumers that only eat animals

Carnivores that feed on the bodies of dead organisms

Consumers that only eat plants and other photosynthetic organisms

Consumers that eat both plants and animals

Break down biotic wastes and dead organisms

A series of events in which organisms eat another and obtains energy and nutrients

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

A pigment is a chemical compound that absorbs light

An organism that had to get its food from a source-and is unable to make its food

An organism that makes its own food

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Ecosystem

Pg.120

Term	Definition
Organism	Living thing
Habitat	Food, water shelter, and other things from its environment that it needs to live ,grow, and reproduce
Biotic factor	A habitat that are or were once alive
Abiotic factor	No 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 one area
Ecosystem	The community of organisms that lives in a particular area, along with the nonliving environment
Ecology	The study of how organisms interact with each other and with 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 decrease
Carrying capacity	The largest population that an area can support
Niche	The role of an organism in its habitat
Competition	The struggle between organisms to survive as they use the same limited resources is called competition
Predation	Which one organisms kill another for food or nutrients
Symbiosis	Any relationship in which two species live closely together
Commensalism	One species benefits and the other species is neither helped nor harmed
Mutualism	A relationship on which both species benefit
Parasitism	One organism living with, on, or inside another organism and harming it
Producer	An organism that can make its own food is a producer
Consumer	Obtains energy by feeding on other animals
Carnivores	Consumers that only eat animals
Scavenger	Carnivores that feed on the bodies of dead organisms
Herbivores	Consumers that only eat plants and other photosynthetic organisms
Omnivores	Consumers that eat both plants and animals
Decomposers	Break down biotic wastes and dead organisms
Food chain	A series of events in which organisms eat another and obtains energy and nutrients
Food web	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
Chlorophyll	A pigment is a chemical compound that absorbs light
Heterotroph	An organism that had to get its food from a source-and is unable to make its food
Autotroph	An organism that makes its own food

Created by: user-1979319

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