Ecology

Ecology

Overview

Key Idea 1: The interactions among populations fall into common patterns.

Key Idea 2: Ecosystems tend to change over time.

Key Idea 3: All organisms in an ecosystem acquire energy directly or indirectly from sunlight.

Key Idea 4: Some materials; such ‘as carbon, oxygen, nitrogen, and water cycle through the environment.

Key Idea 5: People use and benefit from many plant and animal materials, and therefore affect the environment.

Groups: