Answer:
D. It varies from joint to joint
Explanation:
Not A: Your ankle and wrist have different flexibilities
Not B: A sibling won't have the same flexibility
Not C. Again, ankle vs wrist
D. Yes
Answer:Pedometer
Explanation:bc it counts how much steps you took but also shows how much your heart is beating
Answer:
Weakening of the bone
Explanation:
Weakening of the bone would be a negative consequence.