Food Chains, Trophic Levels and Energy Flow in an Ecosystem


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question 1 of 3

In a typical ecosystem, what percentage of the energy consumed by primary consumers will eventually be consumed by secondary consumers?

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1. What can an herbivore be categorized as?

2. How many trophic levels does an omnivore feed on within an ecosystem?

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About This Quiz & Worksheet

This quiz and corresponding worksheet will help you gauge your understanding of the components of an ecosystem, including its food chains, trophic levels and energy flow. Topics you'll need to know about to pass the quiz include herbivores, omnivores and different types of consumers.

Quiz & Worksheet Goals

Use these assessment tools to assess your knowledge of:

  • How much energy consumed by primary consumers is eventually consumed by tertiary consumers
  • Another term for an herbivore, according to ecosystem characteristics
  • The number of trophic level at which an omnivore feeds within an ecosystem
  • Examples of animals that are primary consumers

Skills Practiced

This worksheet and quiz will let you practice the following skills:

  • Defining key concepts - ensure that you can accurately define main phrases, such as primary consumer and tertiary consumer
  • Reading comprehension - ensure that you draw the most important information from the related lesson on food chains, trophic levels and energy flow in an ecosystem
  • Interpreting information - verify that you can read information regarding the trophic levels at which different types of organisms feed
  • Knowledge application - use your knowledge to answer questions about herbivores

Additional Learning

To learn more about what composes an ecosystem, review the corresponding lesson on Food Chains, Trophic Levels and Energy Flow in an Ecosystem. This lesson covers the following objectives:

  • Understand the food chain and the food web
  • Differentiate between producers and consumers
  • Define trophic levels and explore examples of primary, secondary, tertiary and quaternary consumers
  • Distinguish between autotrophs, herbivores, carnivores, omnivores and detritivores
  • Know how energy flows through the food web