Which of the following reactions is correct.

Options

A. Species `to` Communities `to` Population`to` Ecosystems `to` landscapes `to` Biosphere
B. Species `to` Pojpulation `to` Communities `to` Ecosystems `to` landscapes
C. Species `to` Populations `to` Ecosystems `to` Landscapes `to` Communities `to` Biosphere
D. Species `to` Population `to` Communites `to` Landscape `to` Biosphere `to` Ecosystems

Answer

To determine which of the following reactions is correct based on the ecological hierarchy, we need to analyze the components of the hierarchy step by step.

### Step-by-Step Solution:

1. **Understanding Ecological Hierarchy**:
- The ecological hierarchy is a system that organizes biological entities from the smallest to the largest. It starts from subatomic particles and goes all the way to the biosphere.

2. **Identifying the Levels**:
- The levels of ecological hierarchy are as follows:
- Subatomic particles
- Atoms
- Molecules
- Cells
- Tissues
- Organs
- Organ systems
- Organisms
- Populations
- Species
- Communities
- Ecosystems
- Landscapes
- Biomes
- Biosphere

3. **Analyzing the Given Reactions**:
- Without specific reactions listed in the question, we can infer that the correct reaction would be one that follows the logical sequence of the ecological hierarchy. For example, a reaction that shows how cells form tissues, or how populations form communities would be correct.

4. **Conclusion**:
- The correct reaction should reflect the progression from one level of the ecological hierarchy to the next. For example, if the reaction states that "cells combine to form tissues," it is correct. If it states "species combine to form ecosystems," it is also correct.