Ecology Vocabulary

Place the levels of organization in the correct order from smallest to largest.

• Biosphere, Ecosystem, Community, Population, and Organism

• Organism, Population, Community, Ecosystem, and Biosphere

Which organism in the following picture is a primary consumer?

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Which organism in the following picture is at the third trophic level?

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The organisms that make up a community and the nonliving parts of the environment that they interact with are a(n)

• Population

• Community

• Habitat

• Ecosystem

Two or more members of a particular species living and interacting in the same area

• Community

• Population

• Organisms

• Biosphere

An organism that ONLY eats plants is called a(n) -

• carnivore

• omnivore

• herbivore

An organism that only eats other animals is called a:

• herbivore

• carnivore

• omnivore

An organism that eats both plants and animals is called -

• omnivore

• carnivore

• herbivore

organisms like fungi and bacteria that eat dead organisms are called -

• decomposers

• autotrophs

• herbivores

What is the initial source of energy in every ecosystem?

• plants

• higher level consumers

• the sun

• decomposers