Question

In an ecosystem, different species occupy different levels and vertical distribution of species is found. This is called ______. 
 

• A. Stratification
• B. Layering
• C. Fragmentation
• D. Population

Hint:

Think of "Strata" as "layers".
Just as the atmosphere has layers (stratosphere), an ecosystem has vertical layers of life called stratification.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Ecosystems have a physical structure that can be described by the spatial arrangement of the species within them.
Step 2: Detailed Explanation:
The vertical distribution of different species occupying different levels in a biotic community is known as stratification.
For example, in a forest ecosystem:
- Trees occupy the top vertical strata or layer.
- Shrubs occupy the second layer.
- Herbs and grasses occupy the bottom layers.
This arrangement allows for maximum resource utilization and reduces direct competition between species of different heights.
Step 3: Final Answer:
The term for vertical distribution is Stratification, which is option (A).