The global sum of all ecosystems.

A relationship between two organisms where one benefits and the other is neither helped nor harmed.

A relationship between two species in which both benefit.

A relationship where one organism benefits at the expense of another.

The development of plant and animal life in an area without topsoil.

The series of community changes which take place on a previously colonized, but disturbed or damaged habitat.

A stable community that no longer goes through major ecological changes.

The first species to colonize previously disrupted or damaged ecosystems.

A species on which other species in an ecosystem largely depend.

Non-native species that spread beyond their original introduction area and cause environmental or economic damage.

Species that have a strong role in structuring a community.

Density-dependent Limiting Factor

Factors whose effects on the size or growth of the population vary with the population density.

Density-independent Limiting Factor

Factors that affect population size, but are not influenced by changes in population density.

The area that is above water at low tide and under water at high tide.

The part of the ocean that is near the coast.

The vast body of salt water that covers almost three-quarters of the earth's surface.

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

The hierarchical levels in an ecosystem, comprising producers, primary consumers, secondary consumers, and so on.

A system of interlocking and interdependent food chains.

An organism that produces its own food from inorganic substances.

An organism that cannot produce its own food and instead consumes other organisms.

An organism that primarily eats other animals.

An organism that primarily eats plants.

An organism that eats both plants and animals.

An organism that breaks down dead or decaying organisms.

The series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms.

The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.

The series of processes by which carbon compounds are interconverted in the environment.

The process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere.

An apex predator at the top of a food chain, with no natural predators.

An animal that feeds on carrion, dead plant material, or refuse.

An organism that feeds on dead organic material, especially plant detritus.

The process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.

The process of turning from liquid into vapor.

The chemical processes by which atmospheric nitrogen is assimilated into organic compounds.

The loss or removal of nitrogen or nitrogen compounds; specifically, reduction of nitrates or nitrites commonly by bacteria.

The role or function of an organism or species within an ecosystem.

The natural home or environment of an animal, plant, or other organism.

The tidal mouth of a large river, where the tide meets the stream.

The upper layer of a body of water that receives enough sunlight for photosynthesis.

The portion of a lake or ocean where there is little or no sunlight.

The variety of life in the world or in a particular habitat or ecosystem.

Population growth that is controlled by limited resources.

Ecology and Biology Terms Flashcards

Student preview

58 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Biotic

Back

Living components of an ecosystem.

2.

FLASHCARD QUESTION

Front

Abiotic

Back

Non-living components of an ecosystem.

3.

FLASHCARD QUESTION

Front

Population

Back

A group of individuals of the same species living in a specific area.

4.

FLASHCARD QUESTION

Front

Community

Back

Different populations living together in a defined area.

5.

FLASHCARD QUESTION

Front

Individual

Back

A single organism.

6.

FLASHCARD QUESTION

Front

Ecosystem

Back

A community of living organisms and their interactions with their abiotic environment.

7.

FLASHCARD QUESTION

Front

Biome

Back

A large community of plants and animals that occupies a distinct region.

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