Given the task definition and input, reply with output. Given a scientific passage and an answer, generate a question for the given answer.

Passage: Bones are far from static, or unchanging. Instead, they are dynamic, living tissues that are constantly being reshaped. Under the direction of osteocytes, osteoblasts continuously build up bone, while osteoclasts continuously break it down. You can watch an animated video of these processes in bone at http://www. youtube. com/watch?v=yENNqRJ2mu0 . Answer: dynamic
Bones are far from static, or unchanging. instead, they are what?