Bacteria or fungi that break down dead or decaying plants and animals

Organisms that are able to make their own food by using the energy from the environment, also known as autotroph Example: plants

The change in an environment in which communities of organisms are replaced by different communities. Example: lichens->grasses->shrubs->trees

A moss-like organism that is the first to populate a new environment. A pioneer species that helps to create soil from bare rock.

Process by which organisms release carbon dioxide and take in oxygen from the atmosphere.

The movement of individuals into an area, which causes the population to increase

The movement of individuals out of an area which causes the population to decrease

Organisms that must get their energy by eating or consuming another organism, also known as heterotroph Example: animals

A diagram that shows the amount of energy passed in each trophic level of a food chain or food web. 10% of consumed energy is passed on to the organism in the next level.

The position an organism occupies in a food chain such as producers, herbivores, primary carnivore.

The sum total of different species found in an area or ecosystem

Study of relationships among living organisms and their interactions with their physical environments.

Individuals that belong to the same species and live in the same area

All the different populations of organisms that are living in the same area together

All the living things in the area, along with the nonliving things in the area

The ability of bacteria to use nitrogen gas from the air and change it to a form of nitrogen that can be used by plants

The natural limit of a species the environment can support. The ecosystem’s ability to sustain a stable population where the birthrate equals the deathrate

Phase of the water cycle in which water is released from plants into the atmosphere.

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Bio 2: Ecology

Ecology Vocab

Question	Answer
DECOMPOSER	Bacteria or fungi that break down dead or decaying plants and animals
PRODUCER	Organisms that are able to make their own food by using the energy from the environment, also known as autotroph Example: plants
SUCCESSION	The change in an environment in which communities of organisms are replaced by different communities. Example: lichens->grasses->shrubs->trees
LICHEN	A moss-like organism that is the first to populate a new environment. A pioneer species that helps to create soil from bare rock.
RESPIRATION	Process by which organisms release carbon dioxide and take in oxygen from the atmosphere.
IMMIGRATION	The movement of individuals into an area, which causes the population to increase
EMIGRATION	The movement of individuals out of an area which causes the population to decrease
CONSUMER	Organisms that must get their energy by eating or consuming another organism, also known as heterotroph Example: animals
ENERGY PYRAMID	A diagram that shows the amount of energy passed in each trophic level of a food chain or food web. 10% of consumed energy is passed on to the organism in the next level.
TROPHIC LEVEL	The position an organism occupies in a food chain such as producers, herbivores, primary carnivore.
BIODIVERSITY	The sum total of different species found in an area or ecosystem
ECOLOGY	Study of relationships among living organisms and their interactions with their physical environments.
POPULATION	Individuals that belong to the same species and live in the same area
COMMUNITY	All the different populations of organisms that are living in the same area together
ECOSYSTEM	All the living things in the area, along with the nonliving things in the area
NITROGEN FIXATION	The ability of bacteria to use nitrogen gas from the air and change it to a form of nitrogen that can be used by plants
CARRYING CAPACITY	The natural limit of a species the environment can support. The ecosystem’s ability to sustain a stable population where the birthrate equals the deathrate
TRANSPIRATION	Phase of the water cycle in which water is released from plants into the atmosphere.

Created by: cheryl.cabrera

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