Put the steps of endochondral ossification in the correct order. 1: formation of medullary cavity and appearance of secondary ossification centers 2: cavitation of hyaline cartilage within the cartilage model 3: invasion of internal cavities by periosteal bud and spongy bone formation 4: ossification of epiphyses; hyaline cartilage remains at epiphyseal plates and articular cartilages 5: formation of bone collar around hyaline cartilage model

The correct order is:

5: formation of bone collar around hyaline cartilage model  

2: cavitation of hyaline cartilage within the cartilage model  

3: invasion of internal cavities by periosteal bud and spongy bone formation  

1: formation of medullary cavity and appearance of secondary ossification centers  

4: ossification of epiphyses; hyaline cartilage remains at epiphyseal plates and articular cartilages  

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.