UnScramble this Word: n h o n c s u e?

Questions

by age---------- , most people have lost half of their taste buds?

---------- recapitulation is the reason our extremities develop faster than the rest of us?

cephalacaudal ---------- is the reason our extremities develop faster than the rest of us?

cephalacaudal recapitulation is the reason our ---------- develop faster than the rest of us?

children grow faster in the ---------- than they do the rest of the year?