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Vocabulary
Food Chains & Webs
Ecosystem Levels
Community Interactions
Random
100

An environment that provides the things an organism needs to live, grow, and reproduce.

What is a habitat?

100
These organisms produce energy through photosynthesis or chemosynthesis.
What are autotrophs?
100
Two or more organisms of the same species.
What is a population?
100
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
What is commensalism?
100

The organism that has a very important role in the ecosystem that is critical to its functioning.

What is a keystone species?

Double jeopardy: TWO EXAMPLES

200
Non-living factors in a community are called..
What is abiotic factors?
200
These organisms are herbivores, therefore they are called ______________ consumers.
What is primary?
200

Includes all of the interacting populations

What is a community?

200

A relationship between two species in which one species benefits and the other is harmed.

What is parasitism or predation?

200

The portion of an organism's niche that it could POTENTIALLY occupy in absence of competitors

Fundamental Niche

300

Something that only eats plants

What is a herbivore?

300

If producers produce 1000 kcal of energy, then about 1 kcal of energy will be available to  ____________ consumers.

What is tertiary?

300

The role or "job" that an organisms plays in a community, including all of its biotic and abiotic interactions.

What is a niche?

300
A relationship between two species in which both species benefit.
What is mutualism?
300

A carnivore that feeds on the bodies of dead organisms.

What is a scavenger?

400
An organism that breaks down wastes and dead organisms.
What is a decomposer?
400

This is a way to show how energy in a food web is allocated between trophic levels. Usually there is a large base and a pointed top.

What is an energy pyramid?

400

The law that state that no two species may occupy the same niche, one will ALWAYS outcompete the other.

What is the competitive exclusion principle?

400
An interaction in which one organism kills another for food.
What is predation?
400

The portion of an organism's niche that it actually occupies, or "what's left" after interspecific competition.

What is the realized niche?

500

A linear series of events in which one organism eats another and obtains energy. Arrows represent energy transfer.

What is a food chain?

500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500
Includes all of the living and non-living things in an area.
What is an ecosystem?
500

Two or more organisms of the SAME species competing for the same resource.

What is intrAspecific competition?

500

Approximately what % of energy is transferred between trophic levels?

What is 10%?