Scientific study of interactions among organisms and between organisms and their environment.

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

Group of similar organisms that can breed and produce fertile offspring.

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

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

All the organisms that live in a place, together with their nonliving environment.

Group of ecosystems that share similar climates and typical organisms.

Any living part of the environment with which an organism might interact.

Physical, or nonliving, factor that shapes an ecosystem.

Average year-to-year conditions of temperature and precipitation in an area over a long period of time.

Day-to-day conditions of the atmosphere including temperature, precipitation, and other factors.

Process in which certain gases (carbon dioxide, methane, and water vapor) trap sunlight energy in Earth's atmosphere as heat.

Organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds, also called a producer.

First producer of energy-rich compounds that are later used by other organisms.

Organism that obtains food by consuming other living things; also called consumers.

Organism that relies on other organisms for its energy and food supply; also called a heterotroph.

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

Network of complex interactions formed by the feeding relationships among the carious organism in an ecosystem.

Each step in a food chain or food web.

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

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Chap 3/4 Vocab

Intro to Ecology

Term	Definition
Ecology	Scientific study of interactions among organisms and between organisms and their environment.
Biosphere	Part of Earth in which life exists, including land, water, and air or atmosphere.
Species	Group of similar organisms that can breed and produce fertile offspring.
Population	Groups of individuals of the same species that live in the same area.
Community	Assemblage of different populations that live together in a defied area.
Ecosystem	All the organisms that live in a place, together with their nonliving environment.
Biome	Group of ecosystems that share similar climates and typical organisms.
Biotic Factor	Any living part of the environment with which an organism might interact.
Abiotic Factor	Physical, or nonliving, factor that shapes an ecosystem.
Climate	Average year-to-year conditions of temperature and precipitation in an area over a long period of time.
Weather	Day-to-day conditions of the atmosphere including temperature, precipitation, and other factors.
Greenhouse Effect	Process in which certain gases (carbon dioxide, methane, and water vapor) trap sunlight energy in Earth's atmosphere as heat.
Autotroph	Organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds, also called a producer.
Primary Producer	First producer of energy-rich compounds that are later used by other organisms.
Heterotroph	Organism that obtains food by consuming other living things; also called consumers.
Consumer	Organism that relies on other organisms for its energy and food supply; also called a heterotroph.
Food Chain	Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten.
Food Web	Network of complex interactions formed by the feeding relationships among the carious organism in an ecosystem.
Trophic Level	Each step in a food chain or food web.
Biogeochemical Cycle	Process in which elements, chemical compounds, and other forms of matter are passed from one part of the biosphere to another.

Created by: kdulin

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