Populations
Species Interactions
Communities
Energy
Ecology
100

The most likely population distribution in nature.

What is clumped?

100

This describes an organism's use of resources, and its functional role in a community.

What is a niche?

100

A long lasting and physically close relationship in which at least one organism benefits.

What is symbiosis?

100

In a food chain, this is where the arrow points.

What is the direction of energy flow?

100

After a major disturbance, like a volcanic eruption, no life remains. A community will begin to build in a process known as...

What is primary succession?

200

Mates are easier to find with this population dynamic.

What is high population density?

200

A relationship where both species benefit from the relationship.

What is mutualism?

200

All the organisms in a habitat.

What is a community?

200

What happens to most energy in a trophic level.

What is lost as heat?

200

All the living things in an area plus all the non-living things in an area.

What is an ecosystem?

300

A population made up of mostly young organisms would most likely do this.

What is get bigger in size?

300

A niche that is restricted by competition.

What is a realized niche?

300

Species that colonize newly exposed land first.

What is a pioneer species?

300

The amount of energy that is lost at each trophic level.

What is 90%?

300

Non-living parts of the environment.

What is an abiotic factor?

400

The maximum number of a population that can be sustainably supported by a habitat.

What is carrying capacity?

400

This describes an organism's ability to survive in a variety of ever-changing conditions.

What is tolerance?

400

A species that drastically changes a structure of a community due to changes in the population.

What is a keystone species?

400

The total amount of living tissue at each trophic level is shown in this.

What is a biomass pyramid?

400

Organisms that are not native to an area and cause damage.

What is an invasive species?

500

This type of growth is limited by carrying capacity.

What is logistic growth?

500

This describes a relationship where one species benefits and the other species has no benefit or harm.

What is commensalism?

500

A community that is stable and "complete" the succession process.

What is a climax community?

500

The indirect effect on a community when a species is removed.

What is a trophic cascade?

500

The amount of food available in a habitat can affect the growth rate of a population, this is called.

What is a limiting factor?

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