What are sex hormones? Why are they named so? State their function.

Explanation

**Step-by-Step Solution:**

1. **Definition of Sex Hormones:**
Sex hormones are chemical substances produced by the reproductive organs (testes in males and ovaries in females) that play a crucial role in the development and regulation of sexual characteristics and reproductive functions.

2. **Reason for the Name:**
They are called "sex hormones" because they are primarily responsible for the development of secondary sexual characteristics in males and females. These characteristics differentiate the sexes and are crucial for reproduction.

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