A relationship between organisms that strive for the same resources in the same place

Competition Exclusion

No two species can occupy the same niche in the same habitat at the same time

Organisms that rely on other organisms for energy and food/heterotrophs

Organisms that breakdown and obtain nutrients from dead organic matter

Density-dependent limiting factor

Factors that affect the growth rate of a population differently depending on how dense the population already is

Density-independent limiting factor

Any force that affects the size of a population of living things regardless of the density of the population

Organisms that feed on plant and animal remains and other dead matter

The role an organism plays in a community

The study of relationships between living things and their physical environment

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

A graphical representation of the energy found within the trophic levels of an ecosystem

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

Network of complex interactions formed by feeding relationships among various organisms in an ecosystem; connection of food chains

Area where an organism lives, including the biotic and abiotic factors that affect it

An organism that obtains energy by eating only plants

A single species that is not usually abundant in a community yet exerts strong control on the structure of a community

A factor that causes population growth to decrease

Symbiotic relationship in which both species benefit from the relationship

Process of converting nitrogen gas into nitrogen compounds that plants can absorb and use

Organisms that obtain energy by eating both plants and animals

Symbiotic relationship in which one organism lives on or inside another organism and harms it

First species to populate an area during succession

Number of individuals per unit area

Population Dispersion

The arrangement of individuals within a habitat at a particular point in time.

Interaction in which one organism (the predator) captures and feeds on another organism (the prey).

Succession that occurs in an area in which no trace of a previous community is present.

An organism, usually a plant, that produces its own food through photosynthesis.

Type of succession that occurs in an area that was only partially destroyed by disturbance.

Ecological Succession

The process by which the mix of species and habitat in an area changes over time.

Relationship in which two species live close together.

Each step in a food chain or food web.

Unit 8 Ecology Vocabulary Flashcards

Student preview

38 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Biodiversity

Back

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

2.

FLASHCARD QUESTION

Front

Biome

Back

A group of ecosystems that share similar climates

3.

FLASHCARD QUESTION

Front

Carnivore

Back

Organisms that obtain energy by eating animals

4.

FLASHCARD QUESTION

Front

Carrying Capacity

Back

The largest number of individuals of a species that an ecosystem can support

5.

FLASHCARD QUESTION

Front

Chemosynthesis

Back

The process in which chemical energy is used to produce carbohydrates

6.

FLASHCARD QUESTION

Front

Commensalism

Back

Symbiotic relationship in which one organism benefits and the other is neither helped nor harmed

7.

FLASHCARD QUESTION

Front

Community

Back

Many different populations that live together in the same area

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