Trophic Pyramids

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%

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

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. 

What type of organisms could box K contain?

• herbivores

• decomposers

• carnivores

• producers

What type of organisms could box J contain?

• herbivores

• decomposers

• carnivores

• producers

What is this called? (a)  

• Food Web
• Food Chain
• Abiotic Factors

How much energy is passed from one trophic level to the next? (a)  

• 1%
• 10%
• 50%
• 100%

Get their energy from the sun and make their own food.  (a)  

• Producer
• consumer
• decomposer
• photosyntheis

If the primary producers made 50,000 kcal/m²/yr, how much energy would the tertiary consumers recieve?

• 50 kcal/m²/yr

• 5 kcal/m²/yr

• 500 kcal/m²/yr

• 5000 kcal/m²/yr