Ecosystem Relationships
Ecosystem Roles
Vocabulary 1
Food Webs
Vocabulary 2
100

A relationship where both species benefit

Mutualism 

100

Makes their own energy 

Producer 

100

A nonliving factor of an ecosystem 

Abiotic Factor

100

Makes usable energy available to the ecosystem 

Producers

100

A living factor of an ecosystem 

Biotic Factor

200

A relationship where one species benefits and the other is harmed

Parasitism

200

Has to eat to gain energy

Consumers

200

Eats only plants 

Herbivore

200

Organisms that are at the top of the food chain 

Apex Predators

200

Eats only meat

Carnivores 

300

A relationship where one species benefits and the other is neither harmed, nor benefitted 

Commensalism 

300

Breaks down dead organic material to recycle nutrients back into the ecosystem 

Decomposers

300

Eats both plants and animals 

Omnivores
300

Eats producers 

Primary Consumers 

300

A living, self-contained individual. Can be a plant or an animal 

Organism 

400

A relationship where two different organisms fight, outsmart, or kill eachother over a resource 

competition 

400

Another word for consumer

Heterotroph 

400

A type of species that is not native to an area, and upsets the ecosystem 

Invasive Species 

400

Eats primary consumers 

Secondary Consumers 

400

Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.

Limiting Factor

500

A close interaction between two different species within an ecosystem 

Symbiotic Relationship 

500

Another worth for Producer

Autotroph

500

The term for a wide range of organisms in an ecosystem 

Biodiversity 

500

Eats Secondary Consumers

Tertiary Consumers 

500

Changes in population sizes that affect other populations up and down the ecological pyramid 

Trophic Cascade