The common character of enzymes and hormones is that they acts as_________

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Enzymes and Hormones**:
- Enzymes are biological catalysts that speed up biochemical reactions in the body without being consumed in the process.
- Hormones are chemical messengers that regulate various physiological processes in the body.

2. **Identifying the Common Character**:
- Both enzymes and hormones play crucial roles in facilitating and regulating biological processes.
...