Neanderthal man differs from modern man in

Options

A. Semierect posture
B. Protruding jaws
C. No chin
D. All of these

Answer

To answer the question "Neanderthal man differs from modern man in," we will analyze the differences between Neanderthal man (Homo sapiens neanderthalensis) and modern man (Homo sapiens).

### Step-by-Step Solution:

1. **Understanding Neanderthal Man**:
- Neanderthal man is scientifically classified as Homo sapiens neanderthalensis. They lived approximately 100,000 to 40,000 years ago and are primarily associated with Europe and parts of Asia.

2. **Cranial Capacity**:
- Neanderthals had a cranial capacity of about 2100 cc, which is larger than that of modern humans. This suggests a different brain structure and potential intelligence.

3. **Physical Characteristics**:
- **Posture**: Neanderthals had a semi-erect posture, which is different from the fully erect posture of modern humans.
- **Jaw Structure**: They had protruding jaws, which is a significant difference from the flatter faces of modern humans.
- **Chin Development**: Neanderthals lacked a well-defined chin, which is a characteristic feature of modern humans.

4. **Other Features**:
- Neanderthals had a sloping forehead, a flat cranium, and heavy brow ridges, which further distinguish them from modern humans.

5. **Conclusion**:
- Given these differences, we can conclude that Neanderthal man differs from modern man in several anatomical and physiological aspects, including posture, jaw structure, and chin development.

### Final Answer:
The correct answer is **D) all of these**. Neanderthal man differs from modern man in semi-erect posture, protruding jaws, and lack of a chin.