Put the following steps in the order of occurrence for intra…

Put the following steps in the order of occurrence for intramembranous ossification.   Example:  If clouds form first, then rain starts after that, then type 1 in the blank for the clouds and 2 in the blank for rain, …   [BLANK-1] Osteoblasts deposit spongy bone beginning at center of bone.  [BLANK-2] Connective tissue membranes form at sites of future intramembranous bones.  [BLANK-3] Osteoblasts form layer of compact bone atop the spongy bone.  [BLANK-4] Some cells become osteoblasts.