Symbiotic Relationships Reading Comprehension Article

Symbiosis reading article for high school biology that defines mutualism, commensalism and parasitism through plant and insect partnerships, followed by comprehension and research extension questions.
Grades
Grades 9–12
File type
Multiple File Types

Updated Sep 26, 2026

Subject
Biology, Life Sciences, Science
Topic
Symbiotic, Relationships
Resource types
Worksheets

From the author

About this resource

Symbiotic Relationships Science Article Reinforce science concepts and build literacy skills with this high-interest article and question set focused on the symbiotic relationships between plants and insects. Suitable for high school biology and environmental science classes, the 3-page article serves as a supplementary reading selection to help students deepen their understanding of symbiosis, mutualism, commensalism, and parasitism through real-world examples. After reading about the interactions between Yucca moths and yucca plants, ants and acacia trees, and other symbiotic partnerships in nature, students apply their knowledge by responding to reading comprehension, analysis, and discussion questions. Questions focus on key ideas, author's purpose, text connections, inferences, and reflections. An answer key is included for teacher reference. This self-contained activity can be used flexibly as in-class reading, independent practice, or homework for students ready for an extra challenge. The engaging article and mix of question types works well for building science content knowledge and cross-curricular literacy abilities key to academic success. Modify as needed to best support your high schoolers!

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Distinguish mutualism, commensalism and parasitism using plant and insect examples

  • Explain how pollination partnerships can lead to coevolution

  • Answer text-based questions about symbiotic relationships

Teaching tips

  • The Google Doc version needs internet access; the document file works offline if devices are limited.

Skills covered

  • Classifying relationships — students sort plant and insect interactions into mutualism, commensalism or parasitism

  • Informational reading — students answer comprehension questions from the article

  • Extension research — students investigate further through the two research questions

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