The bioreactor is a place where an optimum external environment is provided to meet the needs of the biological reaction system so that a high yield of the bio-process is achieved. Besides better aeration and mixing properties, what other advantages do stirred tank bioreactors have over shake flasks?

Explanation

### Step-by-Step Solution:

1. **Introduction to Bioreactors**:
- A bioreactor is a vessel or container where biological reactions take place, providing an optimal environment for the growth of microorganisms or cells to produce desired products.

2. **Comparison with Shake Flasks**:
- Shake flasks are commonly used for small-scale cultures but have limitations compared to stirred tank bioreactors.

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