Sum of growth and differentiation is considered as

Answer

To answer the question "Sum of growth and differentiation is considered as," we can break it down into the following steps:

### Step-by-Step Solution:

1. **Define Growth**:
- Growth refers to the increase in size or mass of an organism. In plants, this can be observed as an increase in height, volume, or biomass. For example, when a seedling grows into a mature plant, it undergoes growth.

2. **Define Differentiation**:
- Differentiation is the process by which cells become specialized in structure and function. This means that cells divide and develop into different types of cells that perform specific functions. For instance, in a developing embryo, cells differentiate into muscle cells, nerve cells, etc.

3. **Combine Growth and Differentiation**:
- When we consider both growth and differentiation together, we are looking at how an organism not only increases in size but also develops specialized structures and functions.

4. **Identify the Term for the Combination**:
- The combination of growth and differentiation is referred to as "development." Development encompasses all the changes that occur in an organism as it grows and matures, including both the increase in size and the specialization of cells.

5. **Conclusion**:
- Therefore, the sum of growth and differentiation is considered as "development."

### Final Answer:
The sum of growth and differentiation is considered as **development**.