What are the three types of ecological pyramids. What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem.

Explanation

### Step-by-Step Solution

1. **Introduction to Ecological Pyramids**:
- Ecological pyramids are graphical representations that show the relationship between different trophic levels in an ecosystem. They illustrate how energy, biomass, and the number of organisms are distributed among these levels.

2. **Types of Ecological Pyramids**:
- There are three main types of ecological pyramids:
1. **Pyramid of Number**
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