Grade 8 Biology Practice Test 2026 - Free Biology Practice Questions and Study Guide

Ecosystem services refer to the benefits that humans derive from the natural environment and healthy ecosystems. These services include the provision of clean air and water, suitable habitats for various organisms, and food resources. Ecosystem services are crucial because they maintain the balance of the environment, support biodiversity, and ensure the survival of species, including humans. For instance, plants filter pollutants from the air, wetlands purify water, and forests provide habitat for wildlife and produce food. This interconnectedness highlights the importance of preserving ecosystems to maintain these essential services for all living organisms. The other options, while related to environmental science, do not encompass the comprehensive benefits that ecosystems provide directly to organisms and human society regarding clean air, water, habitats, and food.