Living and nonliving things all interact in an ecosystem. Fish swim and breathe in water. Trees take root in soil. Ecosystems looks at the important roles of living and nonliving things in an ecosystem. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Kids Core is an imprint of Abdo Publishing, a division of ABDO.