Free Printable WorksheetScienceGrade 7Science CurriculumSCI.7.37

7.37 Patterns of Interactions in Ecosystems Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.37 Patterns of Interactions in Ecosystems. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Patterns of Interactions in Ecosystems - Which interaction type best explains the relationship described between two species? (NGSS MS‑LS2‑2)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 7

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 7.37 Patterns of Interactions in Ecosystems skill assessments:

Problem 1Difficulty: Mastery

Focusing only on the sea slug and the algae inside it, which interaction type best describes their relationship?

APredation — a predator obtains food from prey (based on the evidence)

BCommensalism — one species gains and the other is mostly unaffected (based on the evidence)

CParasitism — a parasite gains resources from a host it harms (based on the evidence)

DMutualism — each species receives a benefit (based on the evidence)

Solution & Explanation:Mutualism means both organisms benefit. In this description, the two species each gain something helpful (like food, protection, or pollination), so the relationship is mutualism.

Problem 2Difficulty: Mastery

Which interaction type best describes the relationship between the brood parasite and the host bird?,A. Parasitism — one organism benefits while harming a host | B. Mutualism — both organisms benefit from the relationship | C. Competition — organisms use the same limited resource | D. Commensalism — one organism benefits while the other is not helped or harmed,A,Parasitism means one organism benefits while the other is harmed. In the description

Solution & Explanation:illness

Problem 3Difficulty: Mastery

Which interaction type best describes the relationship between the beetle and the sloth?

AMutualism — both partners gain something useful

BPredation — one organism feeds on another organism

CCompetition — organisms compete for food, space, light, or another limit

DCommensalism — one organism benefits without a clear effect on the other

Solution & Explanation:Commensalism means one organism benefits while the other is not helped or harmed. In the description, one of the beetle and the sloth gets an advantage (food, shelter, or a ride) and the other is unaffected.

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Frequently Asked Questions

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QIs this 7.37 Patterns of Interactions in Ecosystems worksheet free for teachers and homeschoolers?

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 7 Science students. It aligns with educational standard SCI.7.37 (Grade 7 science practice focused on patterns of interactions in ecosystems.).