Biology- Ecology Unit Quiz

What is another term for a producer?

• Heterotrophs

• Autotrophs

• Consumers

• Omnivores

This is an organism that obtains their energy from dead matter or waste?

(a)  

The (a)   trophic level is always the producer.

This is multiple connected food chains showing the complex interactions within an ecosystem.

• Food web

• Food chain

• Primary producer

• Primary web

What percentage of energy is passed between the trophic levels?

• 100%

• almost 50%

• 10%

• about 30%

Which of the following is NOT only of the biogeochemical cycles that are essential for life?

• Water cycle

• Kreb cycle

• Nitrogen cycle

• Carbon cycle

This process occurs when liquid water returns to the atmosphere?

(a)  

When water continues to seep into the soil to becomes ground water, this process is known as (a)   ?

Carbon can return to the air and water in what 3 ways (pick three)

• respiration

• transpiration

• evaporation

• erosion

• combustion

We rely on ________ in order to help make nitrogen usable?

• carnivores

• decomposers

• bacteria

• earthworms

• All of the above