Vocabulary
Food Chains & Webs
Population Ecology
Community Interactions
Random
100

An organism that can eat both plants and animals. 

What is an omnivore? 

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 a parasite lives in or on in a parasitism interaction.

What is a host?

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 area in which life is found on Earth.

What is the biosphere?

200
A relationship between two species in which one species benefits and the other is harmed.
What is parasitism?
200

Type of competition between the same species.  

What is intraspecific competition? 

300
Something that only eats plants
What is a herbivore?
300
These organisms are typically at the top of the food chain. They are called ____________ consumers.
What is tertiary?
300

The limit to which a population can grow. 

What is a carrying capacity? 

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

Species which directly or indirectly affects the population of other species. 

What is a keystone species? 

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. Usually there is a large base and a pointed top.
What is an energy pyramid?
400

Factors which set the carrying capacity. 

Limiting factors

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

Top down effect of changing the population of top species and how if affects the population size of others. 

What is trophic cascade? 

500
A series of events in which one organism eats another and obtains energy. Usually written on one line.
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

Two ways which the population of an ecosystem can increase. 

What are births and immigration? 

500
Two or more organisms competing for the same resource.
What is competition?
500
Study of the interactions of living things and their environment.
What is ecology?
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