Question

Snakes have movable jaw bones for

• A. Swallowing items larger than their heads
  
• B. Crushing of their prey
• C. Protection from violent movements of prey
• D. All the above

Answer 1

Answer: (A)

Swallowing items larger than their heads

The lower jawbones or mandible participates in the process of feeding as well, they also have a loose attachments of the lower jaws to each other at the front of dentary bones. Together with the flexible upper jaws, this free part of lower jaw allows snakes to open their mouth wide, walk their heads over and consume their prey without breaking them into smaller pieces.

So, option A is the correct option.