Ecosystems QUIZ

Which is an organism that makes its own food?

• consumer

• producer

• decomposer

• predator

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

What are plants called in a food chain?

• Producers
• Consumers
• Decomposers
• Scavengers

What are animals called in a food chain?

• Producers
• Consumers
• Decomposers
• Plants

What are the organisms that break down dead stuff?

• Producers
• Consumers
• Decomposers
• Organisms

What does a food web represent?

• All connections of energy flow throughout all organisms in a ecosystem.
• All the possible relationships that exist in a community.

• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Which term includes all of the biotic PLUS all the abiotic things together in a specific environment?

• community

• biosphere

• habitat

• population

• ecosystem

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

• 80%
• 90%
• 10%
• 20%

If there are 100 Kcal of energy available in the producers, how much energy would be available in the herbivores?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

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

• A
• B
• C
• D