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

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

Group or 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 enviornment.

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

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

Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem.

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 form one part of the biosphere to another.

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

Condition of Earth's atmosphere at a particular time and place.

Average, year-after-year conditions of temperature and precipitation in a particular region.

Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases.

Biological influence on organisms within an ecosystem.

Physical, or nonliving, factor that shapes an ecosystem.

Full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions.

Growth pattern in which a population's growth rate slows or stops following a period of exponential growth.

Largest number of individuals of a population that a given enviornment can support.

Scientific study of human populations.

DEMOGRAPHIC TRANSITION

Change in a population from high birth and death rates to low birth and death rates.

The developement of highly productive crop strains and the ise of modern agricultural techniques to increase yields of food crops.

Resource that can regenerate quickly and that is replaceable.

Harmfull material that can enter the biosphere through the land, air, or water.

Biological diversity; the sum total of the variety of organisms in the biosphere.

BIOLOGICAL MAGNIFICATION

Increasing concentration of a harmful substance in organisms higher trophic levels in a food chain or food web.

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Question	Answer
ECOLOGY	Scientific study of interactions among organisms and between organisms and their enviornment.
BIOSPHERE	Part of Earth in which life exists including land, water, and air or atmosphere.
SPECIES	Group or 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 enviornment.
AUTOTROPH	Organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer.
HETEROTROPH	Organism that obtains energy from the foods it consumes; also called a consumer.
FOOD WEB	Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem.
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 form one part of the biosphere to another.
LIMITING NUTRIENT	Single nutrient that is either scarce or cycles very slowly, limiting the growth of organisms in an ecosystem.
WEATHER	Condition of Earth's atmosphere at a particular time and place.
CLIMATE	Average, year-after-year conditions of temperature and precipitation in a particular region.
GREEN HOUSE EFFECT	Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases.
BIOTIC FACTOR	Biological influence on organisms within an ecosystem.
ABIOTIC FACTOR	Physical, or nonliving, factor that shapes an ecosystem.
NICHE	Full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions.
LOGISTIC GROWTH	Growth pattern in which a population's growth rate slows or stops following a period of exponential growth.
CARRYING CAPACITY	Largest number of individuals of a population that a given enviornment can support.
DEMOGRAPHY	Scientific study of human populations.
DEMOGRAPHIC TRANSITION	Change in a population from high birth and death rates to low birth and death rates.
GREEN REVOLUTION	The developement of highly productive crop strains and the ise of modern agricultural techniques to increase yields of food crops.
RENEWABLE RESOURCE	Resource that can regenerate quickly and that is replaceable.
POPULANT	Harmfull material that can enter the biosphere through the land, air, or water.
BIODIVERSITY	Biological diversity; the sum total of the variety of organisms in the biosphere.
BIOLOGICAL MAGNIFICATION	Increasing concentration of a harmful substance in organisms higher trophic levels in a food chain or food web.

Created by: smileymylie14

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