Question

What was the earlier significance of the vermiform appendix in ancestral species?

Options

• Serving as a protective membrane over the eye surface

• Providing structural balance as an extended tail

• Associated with digestion of cellulose-rich food in ancestors

• Aiding in moving the external ear more effectively

Answer 1

In ancestral species, the vermiform appendix was associated with the digestion of cellulose-rich food. In humans, it exists as a reduced organ with no major original digestive role.