Trophic Levels and Energy Transfer Quiz

What is the primary role of producers in a food chain?

• To consume other organisms

• To decompose organic material

• To produce energy from sunlight

• To occupy the top trophic level

In a food web, what is the position of an eagle?

• Primary consumer

• Decomposer

• Tertiary consumer

• Secondary consumer

Which of the following organisms is typically found at the bottom of a food chain?

• Producers

• Primary carnivores

• Herbivores

• Tertiary consumers

What percentage of energy is typically transferred from one trophic level to the next?

• 10%

• 100%

• 50%

• 1%

If a grasshopper consumes grass, how much energy does it typically receive?

• 50%

• 1%

• 10%

• 100%

What happens to the majority of energy as it moves up the trophic levels?

• It is transferred to decomposers

• It is lost as heat

• It is converted to biomass

• It is stored in the organism

How much energy does a tertiary consumer receive from a secondary consumer?

• 10%

• 1%

• 0.1%

• 0.01%

What is the energy content at the base of an energy pyramid?

• 10,000 joules

• 1,000 joules

• 100 joules

• 1 joule

Which level of the energy pyramid receives the least amount of energy?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

Why is energy transfer between trophic levels inefficient?

• Energy is stored in fat

• Energy is converted to light

• Energy is lost as heat

• Energy is used for growth