Aerobic respiration produces energy about 18 times than in anaerobic respiration.

Explanation

### Step-by-Step Solution:

1. **Definition of Aerobic and Anaerobic Respiration**:
- Aerobic respiration occurs in the presence of oxygen, while anaerobic respiration occurs in the absence of oxygen.

2. **Processes Involved**:
- Aerobic respiration involves several stages: glycolysis, the Krebs cycle (also known as the citric acid cycle), and the electron transport chain (ETS).
- Anaerobic respiration primarily involves glycolysis followed by fermentation processes, which can produce either lactate or ethanol and carbon dioxide.
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