What does an Ecological Pyramid indicate ? Explain the three different types of upright Pyramids in nature with help of an example each.

Explanation

### Step-by-Step Solution

**Step 1: Understanding Ecological Pyramids**
An ecological pyramid is a graphical representation that illustrates the relationship between different trophic levels in an ecosystem. It can represent the number of organisms, biomass, or energy at each trophic level. The pyramid shape indicates that there are generally more organisms or greater biomass at the base (producers) than at the top (top consumers).

**Step 2: Types of Ecological Pyramids**
There are three main types of upright ecological pyramids:

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