Coevolution: Examples & Definition


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What is it called when two species trigger evolutionary changes in each other?

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1. Which is true of an evolutionary arms race?

2. A hummingbird species has a curved beak and feeds on a flower species with a similarly curved shape. These flowers also depend on the hummingbirds to pollinate them. Which could be a possible explanation for this?

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About This Quiz & Worksheet

Mutualistic and competitive coevolution cause related evolutionary changes in multiple species over time. This quiz/worksheet combo will test your understanding of key terms and distinguishing features of coevolutionary relationships.

Quiz & Worksheet Goals

To be successful in this quiz, you will need to know:

  • How and why species rely on each other for evolution
  • Characteristics of an evolutionary arms race
  • Distinguishing features of each type of coevolution

Skills Practiced

This quiz and worksheet will help reinforce the following skills:

  • Critical thinking - apply relevant concepts to examine information about coevolution in a different light
  • Distinguishing differences - compare and contrast mutualistic and competitive coevolution
  • Knowledge application - use your knowledge to answer questions about predator and prey coevolution as well as parasite and host coevolution

Additional Learning

Review the related lesson titled Coevolution: Examples & Definition to gain a better understanding of this topic. The lesson contains the following objectives:

  • Distinguish between mutualistic and competitive coevolution
  • Know the role predation plays between species
  • Explore brood parasitism in birds