Question

Select the correct sequence based on increasing cranial capacity.
A. Homo sapiens
B. Homo floresiensis
C. Homo habilis
D. Homo erectus
Choose the correct answer from the options given below:

• A. B, C, D, A
• B. D, B, C, A
• C. B, A, D, C
• D. C, B, D, A

Hint:

Remember the general evolutionary sequence and the trend of increasing brain size: {H. habilis} $\rightarrow$ {H. erectus} $\rightarrow$ {H. sapiens}. {H. floresiensis} ("The Hobbit") is the exception, with a tiny brain due to island dwarfism, making it the smallest in this list.

Answer 1

The Correct Option is A

Step 1: Concept Overview:
The task is to arrange hominin species by average cranial capacity, smallest to largest. A key trend in human evolution is encephalization, referring to increased brain size relative to body size.
Step 2: Detailed Explanation:
Here are the approximate average cranial capacities for each species:
- B. Homo floresiensis: Known for its small brain size due to insular dwarfism. Average cranial capacity: ~400 cm³.
- C. Homo habilis: An early *Homo* species, often called "handy man." Average cranial capacity: ~600-650 cm³.
- D. Homo erectus: Exhibits a larger brain size than *H. habilis*. Average cranial capacity: ~900-1100 cm³.
- A. Homo sapiens: Modern humans, possessing the largest brain size among the listed species. Average: ~1350 cm³.
Step 3: Solution:
Species ordered by increasing cranial capacity:
Homo floresiensis (B)<Homo habilis (C)<Homo erectus (D)<Homo sapiens (A).
Therefore, the correct sequence is B, C, D, A.