Scientific study of interactions among organisms and between organisms and their enviroment

Part of Earth in which life exists including land, water and air or atmosphere.

A group of similar organisms that can breed and produce fertile offspring.

Group of individuals of the same species that live in the same area.

Assemblage of different populations that live together in a defined area.

Collection of all the organisms that live in a particular place, together with their nonliving environment.

A group of ecosystems that have the same climate and dominant communities.

Organism that can capture energy from sunlight or chemicals and use it to produce its own food fro inorganic compounds; also called a producer.

Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates.

Organism that relies on other organisms for its energy and food supply also called a hetrotroph

Organism that obtains energy by eating animals

Organism that feeds on plant and animals remains and other dead matter.

Food Chain * Food web

Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten.

Step in a food chain or food web

Total amount of living tissue within a given trophic level.

Process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.

Process by which water changes from a liquid into an atmospheric gas

Loss of water from a plant through its leaves.

Chemical substance that an organism requires to live.

Process of converting nitrogen gas into ammonia

Conversion of nitrates into nitrogen gas.

Rate at which organic matter is created by producers in an ecosystem.

Single nutrient that either is scarce or cycles very slowly, limiting the growth or organisms in an ecosystem.

An immediate increase in the amount of algae and other producers that results from a large input of a limiting nutrient.

Organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph

Organism that obtains energy from the foods it consumes; also called a consumer.

Organism that obtains energy by eating only plants.

Organism that obtains energy by eating both plants and animals

Organism that breaks down and obtains energy from dead organic matter

Diagram that shows the relative amounts of energy or matter within each trophic level in food chain or food web.

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Unit 3 Ecology Stack

Unit 3 Ecology Study Stack

Term	Definition
Ecology	Scientific study of interactions among organisms and between organisms and their enviroment
Biosphere	Part of Earth in which life exists including land, water and air or atmosphere.
Species	A group of similar organisms that can breed and produce fertile offspring.
Population	Group of individuals of the same species that live in the same area.
Community	Assemblage of different populations that live together in a defined area.
Ecosystem	Collection of all the organisms that live in a particular place, together with their nonliving environment.
Biome	A group of ecosystems that have the same climate and dominant communities.
Autotroph	Organism that can capture energy from sunlight or chemicals and use it to produce its own food fro inorganic compounds; also called a producer.
Chemosynthesis	Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates.
Consumer	Organism that relies on other organisms for its energy and food supply also called a hetrotroph
Carnivore	Organism that obtains energy by eating animals
Detritivore	Organism that feeds on plant and animals remains and other dead matter.
Food Chain * Food web	Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten.
Trophic Level	Step in a food chain or food web
Biomass	Total amount of living tissue within a given trophic level.
Biogeochemical cycle	Process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Evaperation	Process by which water changes from a liquid into an atmospheric gas
Transpiration	Loss of water from a plant through its leaves.
Nutrient	Chemical substance that an organism requires to live.
Nitrogen Fixation	Process of converting nitrogen gas into ammonia
Denitrification	Conversion of nitrates into nitrogen gas.
Primary Productivity	Rate at which organic matter is created by producers in an ecosystem.
Limiting Nutrient	Single nutrient that either is scarce or cycles very slowly, limiting the growth or organisms in an ecosystem.
Algal Bloom	An immediate increase in the amount of algae and other producers that results from a large input of a limiting nutrient.
Producer	Organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph
Heterotroph	Organism that obtains energy from the foods it consumes; also called a consumer.
Herbivore	Organism that obtains energy by eating only plants.
Omnivore	Organism that obtains energy by eating both plants and animals
Decomposer	Organism that breaks down and obtains energy from dead organic matter
Ecology Pyrimid	Diagram that shows the relative amounts of energy or matter within each trophic level in food chain or food web.

Created by: EthanGreiner

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