Define an ecosystem. Draw a block diagram to show the flow of energy in an ecosystem.

Explanation

### Step-by-Step Text Solution

**Step 1: Define an Ecosystem**
An ecosystem is a biological community of interacting organisms (biotic components) and their physical environment (abiotic components). It includes all living things such as plants, animals, and microorganisms, as well as non-living elements like air, water, soil, and climate. The interaction between these biotic and abiotic components creates a functional unit that sustains life.

**Step 2: Identify Biotic and Abiotic Components**
- **Biotic Components:** These are the living parts of an ecosystem, including:
- Plants (producers)
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