An ecosystem is a community of living organisms and their physical environment interacting as a system.

Learn what an ecosystem is, how energy and matter move through ecosystems, and what makes an ecosystem stable.

Welcome to the fascinating subject of ecology! From population dynamics to biodiversity, this unit explores the complex web of interactions that make up our natural world.

Introduction to ecology, the study of interactions between living and non-living factors in an environment.

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可汗学院提供关于生态系统的介绍，帮助学生理解生态系统的基本概念和组成部分。

Learn about disruptions to ecosystems in AP Biology on Khan Academy.

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Опа. Нещо се обърка. Моля, опитай отново. Опа, изглежда, че нещо се обърка. Трябва да обнови ...