Ecosystems
Food Chains
Energy Pyramids
Food Webs

Relationships
Miscellaneous
100

The smallest unit of an ecosystem                      (based on Ecological Organization) 

What is Organism?

100

A diagram in a series showing the transfer of energy from one organism to the next in an ecosystem. 

For example: algae is eaten by snails/ ducks eat snails/ foxes eat ducks


What is a food chain?

100

The lowest level of an energy pyramid is occupied by these.

What are producers?

100

A system of interconnected and interdependent food chains.

What is a food web?

100

Close relationship, involving energy, between two different organisms over a long period of time

What is symbiosis?

100

An organism that gets energy by eating other organisms.

What is a consumer?

200

Group of animals of the same species within a given area

What is a Population?

200

Arrows in a food chain show that this is being transferred.

What is energy?

200

Organisms referred to as primary consumers or herbivores occupy this level of an energy pyramid.

What is the second level?

200

The organisms responsible for creating energy within a  food web.

What are producers?

200

In this symbiotic relationship between 2 organisms, both organisms benefit.

What is mutualism?

200

A living factor of an ecosystem.

What is a biotic factor?

300

Multiple populations of organisms within a given area.

What is a Community?

300

This should normally be written first in a food chain.

What is the sun?

300

These organisms occupy the third level of an energy pyramid.

What are secondary consumers or carnivores?

300

Organisms in food webs that consume plants and animals.

What are omnivores?

300

In this symbiotic relationship between 2 organisms, one organism benefits and one neither benefits nor is harmed.

What is commensalism?

300

Green algae in a farmer's pond is an example of this.

What is a producer?

400

All the organisms and the abiotic factors they depend on for survival within a given area.

What is an Ecosystem?

400

 This is the first organism in a food chain.

What is a producer?

400

Lions, eagles, killer whales, and Great White sharks would occupy this level of an energy pyramid.

What is tertiary consumer or fourth level?

400

Organism missing from this food web.

What is a decomposer?

400

In this symbiotic relationship between 2 organisms, one organism benefits and one organism is harmed.

What is parasitism?

400

In this ecosystem, the relationship between the       fox and the rabbit.

sun--->clover--->rabbit--->fox  

What is predator-prey?

500

All the areas of the Earth capable of supporting life.

What is the biosphere?

500

This SHOULD be the last organism in a food chain.

What is a decomposer?

500

There are 40,000 kg of energy at the base the pyramid. This is the amount the secondary consumers will receive. 

What is 400 kg?

500


This organism has 2 roles in the food web.


What is the Blue Jay?

Primary consumer (seeds/nuts)

Secondary consumer grasshopper




500

In this relationship, 2 different organisms of the species compete for the same resource in an ecosystem.

What is intra-specific competition?

500

In this ecosystem, the relationship between              the fox and the hawk.          

sun--->wildflowers--->rabbit----> fox

                                          ---->hawk

What is inter-specific competition?

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