Carbon & Nitrogen Cycle, Symbiotic Relationships & Flow of Matter Voc Quiz

A moose is considered to be a consumer because it...

• gets energy by eating other resources

• makes its own food

• forms carbohydrates using chemicals

• uses sunlight for energy

The basis for energy in an ecosystem is provided by...

• consumers

• heterotrophs

• chemosynthesis

• producers

Most producers get energy from the sun using the process of...

• respiration

• consumption

• photosynthesis

• chemosynthesis

A model that shows a single sequence of feeding relationships is called a...

• trophic level

• food chain

• food web

• feeding chain

Decomposers are important to ecosystems because they...

• return vital nutrients to the environment

• are producers

• capture energy from the Sun

• can be omnivores

Giant pandas eat bamboo almost exclusively. For this reason giant pandas are an example of a(n)

• carnivore

• omnivore

• generalist

• specialist

A food chain contains oak trees (producer), mice (herbivore), black rat snackes (carnivore), and bald eagles (carnivore). How many trophic levels does this food chain have?

• one

• two

• three

• four

Food webs are models that show...

• one sequence of producers and consumers

• networks of feeding relationships

• store energy in food chains

• only primary consumers in an ecosystem

Fossil fuels are part of which of the following cycles?

• hydrologic

• carbon

• nitrogen

• phosphorus

What happens during the process of nitrogen fixation?

• Bacteria change ammonium into nitrate

• Bacteria grow on nodules on plant roots

• Bacteria absorb ammonia and extra ammonium

• Bacteria convert gaseous nitrogen into ammonia