Which of the following has the lowest cranial capacity ?

Options

A. Homo erectus
B. Homo habilis
C. Modern man
D. Neanderthal man

Answer

To determine which of the following has the lowest cranial capacity, we will analyze the cranial capacities of the given options: Homo erectus, Homo habilis, modern man, and Neanderthal man.

### Step-by-Step Solution:

1. **Understand Cranial Capacity**: Cranial capacity refers to the volume of the interior of the skull, which can be indicative of brain size and cognitive abilities.

2. **Analyze Homo erectus**:
- Homo erectus is one of the early human relatives.
- Their cranial capacity ranges from **750 to 900 cubic centimeters**.

3. **Analyze Homo habilis**:
- Homo habilis is known as the first tool maker.
- Their cranial capacity is approximately **735 cubic centimeters**.

4. **Analyze Modern Man (Homo sapiens)**:
- Modern humans, or Homo sapiens, are the species of humans that exist today.
- Their cranial capacity ranges from **1400 to 1550 cubic centimeters**.

5. **Analyze Neanderthal Man**:
- Neanderthal man is known for its robust build and adaptation to cold climates.
- Their cranial capacity ranges from **1300 to 1600 cubic centimeters**.

6. **Compare the Cranial Capacities**:
- Homo erectus: 750 - 900 cc
- Homo habilis: 735 cc
- Modern man: 1400 - 1550 cc
- Neanderthal man: 1300 - 1600 cc

7. **Conclusion**:
- Among the options, Homo habilis has the lowest cranial capacity at **735 cubic centimeters**.

Therefore, the answer to the question is **Homo habilis**.