Underlying Earth's natural beauty is a complex system of ecological units that contour the planet and host a wide variety of life forms. Though stratified by topographical and physiographical features, these regions function collectively to support an incredible range of biodiversity. Symbiotic relationships and environmental conditions that sustain the natural order are the subjects of this engrossing series. Several volumes navigate Earth's various ecosystems, with an emphasis on each area's biotic and abiotic elements, while others offer comprehensive discussions of ecological threats and ongoing efforts to combat them.
Number of Titles: 8
Interest Level: Grades 9-12
Reading Level: Grade 10
ISBN: 9781615303526 (Print) 9781615304738 (E-book)