Answer:
Vestigial structures
Explanation:
Vestigial structuresserve little or no present purpose for an organism. The human tail, which is reduced to the tailbone during development, is one example.
Answer:
Sorry, I don't see what your question is about.
Bone remodeling is a process in which bone tissue is replaced by newer bone tissue. It can be used to determine age because we take the bone tissue that was removed from the skeleton and based on its structure we can determine at what age was it removed from the skeleton.
