Yes they can but it would be very rare.
The two regions where this case are, are the vertebral canal and the spinal column
Answer:
Deciding insurance coverage based on an individual's genetic profile
Explanation:
Because they do not evolve in the sense of inherited traits, which can deal with the evolution of a organism for survival. Acquired traits are learned traits.
The pair of elements which would likely have similar valency and similar chemical behavior is BORON AND ALUMINIUM.
Both boron and aluminium have three electrons in their outermost shells. The possession of the same amount of electrons in their valence shells will make the elements to behave in the same manner chemically in term of bond formation and chemical reactions.
