Here are a few ways to approach it:
* Major body parts: Koalas, like most mammals, have the typical major body parts: head, torso, four limbs, and a tail. That would be 6 major body parts.
* Individual bones: If you're counting individual bones, koalas have around 200 bones.
* Including features: If you count things like ears, eyes, nose, and claws, the number gets much higher!
Ultimately, there's no single "correct" answer. It depends on what you consider a "body part."