Biosphere is also called Ecosphere.

Answer

### Step-by-Step Solution:

1. **Understanding the Terms**:
- The term "Biosphere" can be broken down into two parts: "Bio" meaning life, and "Sphere" meaning a spherical zone. Thus, the biosphere refers to the global sum of all ecosystems, where life exists.
- The term "Ecosphere" can also be divided into "Eco" which stands for ecosystem, and "Sphere" which again refers to a spherical area. The ecosphere encompasses all ecosystems and the living organisms within them.

2. **Relationship Between Biosphere and Ecosphere**:
- Both terms highlight the presence of life within a defined space. The biosphere is essentially the part of the Earth where life exists, while the ecosphere emphasizes the interaction of living organisms with their environment (ecosystem).
- An ecosystem is a community of living organisms interacting with each other and their physical environment. Therefore, wherever there is an ecosystem, there is life, and vice versa.

3. **Conclusion**:
- Since both terms refer to the same concept of life existing within a defined area, it is accurate to say that the biosphere is also referred to as the ecosphere. They are equivalent in meaning and context.

4. **Final Answer**:
- Therefore, the statement "Biosphere is also called Ecosphere" is **True**.