Features help to distinguish the male from the female they are called:

Options

A. Primary sexual characters
B. Secondary sexual chracters
C. Tertiary sexual character
D. None of the above

Explanation

To answer the question "Features that help to distinguish the male from the female are called:", we can follow these steps:

1. **Understand the Question**: We need to identify the term that refers to the features distinguishing males from females.

2. **Evaluate the Options**: The options provided are:
- Primary sexual characters
- Secondary sexual characteristics
- Tertiary sexual characters
- None of the above

3. **Analyze Each Option**:
- **Primary Sexual Characters**: These are the anatomical features present at birth, such as testes in males and vagina in females. They do not help in distinguishing males from females during puberty.
- **Secondary Sexual Characteristics**: These features develop during puberty and include traits such as breast development in females and facial hair in males. These characteristics help distinguish males from females effectively.
- **Tertiary Sexual Characters**: This term is not commonly used in biological contexts to describe sexual differentiation.
- **None of the Above**: This option implies that none of the previous options are correct, which is not the case here.

4. **Select the Correct Answer**: Based on the analysis, the correct answer is "Secondary sexual characteristics" since these features appear during puberty and help in distinguishing males from females.

5. **Conclusion**: The features that help to distinguish the male from the female are called "Secondary sexual characteristics."