HESI A2 Practice Test & Study Guide

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Ecology HESI A2 Practice Questions

Free Ecology practice questions for the HESI A2 exam with detailed rationales.

Question 1 of 2

Which of the following best describes the role of decomposers in an ecosystem?

They produce energy through photosynthesis.

They consume primary producers to regulate population sizes.

They compete with herbivores for food resources.

They break down dead organic matter and recycle nutrients.

Submit your answer to see the rationale