Ecosystem (Food Chain) Quiz

In an ecological pyramid, which type of organism always has the least amount of energy available?

• Producers
• Herbivores
• Carnivores
• Top Predator

How much of the energy in each level of a ecological pyramid gets lost as heat or used by the organism so that it cannot be passed on to the next trophic level?

• 80%
• 90%
• 10%
• 20%

In this ecological pyramid which type of consumer gets only 10% of the energy stored in plants?

• Herbivore
• Carnivore
• Omnivore
• Secondary Consumer

The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain organisms that do photosynthesis?

• A
• B
• C
• D

True or False. In this energy pyramid, the consumers on each level only get about 10 percent of energy that the trophic level before it has stored.

• True
• False

If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?

• It is destroyed after it is used up.
• It is used for life processes or lost as body heat.
• It remains for the next trophic level IF the predator consumes ALL of the organism.
• It is lost completely as body heat. 

In this energy pyramid, what is the proper name for ANY ORGANISM ABOVE THE PRODUCER LEVEL?

• decomposers
• consumers
• producers
• omnivores

Why are producers found at the base of the pyramid?

• They create all of the energy and therefore have the most energy of all of the trophic levels
• There are more plants than animals. 
• They begin the flow of energy in an ecosystem.
• All of these answers are correct. 

The living and nonliving things in an environment and all the interactions

• population

• food chain

• ecosystem

• community

All of the living organisms living in an area

• habitat

• community

• ecosystem

• hibernation