Question

question 7 what feature of the skeleton eventually allow a child to maintain balance while walking and running? answer the bones of the lower appendage the joint between the sacrum and the pelvic girdle the secondary curves of the vertebral column the primary curves of the vertebral column i dont know yet

Explanation:

The secondary curves of the vertebral column develop as a child learns to sit and walk, helping with balance. The lower - appendage bones are for movement but not primary for balance, the sacrum - pelvic girdle joint is important for stability but not the main factor for balance while walking/running, and primary curves are present at birth and not related to balance during walking/running.

Answer:

The secondary curves of the vertebral column