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Vocabulary
Food Chains & Webs
Ecosystem Levels
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100

All living things in ecosystem.

Biotic Factor

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

Sunlight is a __________ factor. 

Abiotic 

200

A non-native species that spreads quickly and causes harm to the environment, economy, or human health 

What is an invasive species ?

200
These organisms are herbivores, therefore they are called ______________ consumers.
What is primary?
200

Large geographical region with a distinct climate, vegetation, and animal life

What is the biosphere?

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

What does the arrow represent in a food web?

What is the flow of energy?

300

The variety of different types of organisms found in a region or ecosystem.

What is biodiversity ?

300

Primary producers get their energy from ____________. 

The sun

or 

Photosynthesis 

300
One individual
What is a organism?
300
A relationship between two species in which both species benefit.
What is mutualism?
300

Limiting factors are something that will restrict populations from growing out of control. 

List two limiting factors 

Food, Water, Shelter, Weather, Predation, Competition, Space, Sunlight

400

The maximum number of organisms a population can sustain with the available resources.

What is carrying capacity?

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
Two or populations of species.
What is a community?
400
An interaction in which one organism kills another for food.
What is predation?
400

If mice get a disease and their population decreases what will happen to the grasshopper population? 

Grass --> Grasshopper --> Mouse --> Owl

The grasshopper population will increase 


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
Includes all of the living and non-living things in an area.
What is an ecosystem?
500
Two or more organisms competing for the same resource.
What is competition?
500

If mice get a disease and their population decreases what will happen to the owl population? 

Grass --> Grasshopper --> Mouse --> Owl

The owl population will decrease