Select the CORRECT difference between standing crop and standing state .

Options

A.
B.
C.
D.

Answer

To solve the question regarding the difference between standing crop and standing state, we will break down the concepts step by step.

### Step-by-Step Solution:

1. **Understanding Standing Crop**:
- The term "standing crop" refers to the total biomass of living organisms (organic matter) present in a specific area at a given time. This includes all the plants, animals, and microorganisms at a particular trophic level in an ecosystem.

2. **Understanding Standing State**:
- The term "standing state" refers to the total amount of inorganic matter (non-living matter) present in a specific area at a given time. This typically includes nutrients such as minerals and other inorganic compounds found in the soil.

3. **Key Differences**:
- **Nature of Matter**:
- Standing crop is composed of organic matter (living organisms), while standing state is composed of inorganic matter (nutrients).
- **Components**:
- Standing crop is related to biotic components (living), whereas standing state is related to abiotic components (non-living).
- **Circulation**:
- Standing crop cannot be circulated between living and non-living components as it only pertains to living organisms. In contrast, standing state can be circulated through biogeochemical cycles, where nutrients are transferred and utilized by living organisms.

4. **Conclusion**:
- Based on the definitions and differences outlined, the correct statement is that standing crop cannot be circulated between living and non-living components, while standing state can be circulated through biogeochemical cycles.

### Final Answer:
The correct difference between standing crop and standing state is that standing crop refers to the biomass of living organisms, while standing state refers to the inorganic nutrients present in the ecosystem. Thus, the correct option is the one that states that standing crop cannot be circulated between living and non-living components.