Ecosystems

1. Habitats

1.1. Characteristics

1.1.1. Abiotic

1.1.1.1. Humidity

1.1.1.2. pH

1.1.1.3. Oxygen levels

1.1.1.4. Light

1.1.1.5. Temperature

1.1.2. Biotic

2. Types of Ecosystems

2.1. Terrestrial

2.1.1. Tropical Rainforests

2.1.1.1. Characteristics

2.1.1.1.1. Biotic

2.1.1.1.2. Abiotic

2.1.2. Deserts

2.2. Freshwater

2.2.1. Lakes

2.2.2. Rivers

2.2.3. Ponds

2.3. Marine

2.3.1. Oceans

2.3.2. Intertidal systems

2.3.2.1. Mangroves

2.3.2.1.1. Characteristics

2.3.2.1.2. Adaptations

2.3.3. Coral reefs

3. Organisms

3.1. Animals

3.2. Plants

3.3. Decomposers

3.3.1. Fungi

3.3.2. Bacteria