Answer:
weakness of core muscle can lead to chronic back pain
Answer:
B, they share similar chemical properties.
Explanation:
Arthropods has the bilateral symmetry !
so answer is B !
All the cells in a person's body have the same DNA and the same genes. However, the difference between cells in different tissues and organs is that the "expression" of the genes differs between cells. Expression means that the message from the DNA is being copied and made into protein.