Answer: it shortened the name and easier to remember 
Explanation:
 
        
                    
             
        
        
        
No estoy seguro que decir, pero sí es difícil
        
             
        
        
        
The correct  steps of endochondral ossification is:
- A periosteal bone collar develops.
- spongy bone and the medullary cavity form in the diaphysis.
- The diaphysis center is vascularized and osteoblasts deposit osteoid over calcified cartilage matrix.
- The epiphyseal center is vascularized and osteoblasts deposit osteoid over the calcified cartilage matrix.
- The spongy bone forms in epiphysis.
<h3>Which bones grow by endochondral ossification?</h3>
Long and short bones, such as the phalanges and femur, arise from a cartilage model formed by endochondral ossification. Distinguishing between these two types of osteogenesis does not imply the existence of multiple types of bone tissue.
Endochondral ossification mainly forms in two stages: modifications of the hyaline cartilage that ends with the death of chondrocytes and invasion of osteogenic cells and their differentiation into osteoblasts in the cavities previously occupied by chondrocytes for deposition.
See more about Endochondral ossification at brainly.com/question/9211436
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Density is mass of object per unit volume
        
                    
             
        
        
        
Answer:
Function will be disrupted by adding the urea and regained by removing the urea.
Explanation:
The protein is one of the important biomolecule made of the polymers of the alpha amino acids that are linked together by peptide bonds. The protein works at their specific pH.
Denaturants disrupt the 3 dimensional structure of protein that affect their normal functioning. In the given experiment, the urea acts as denaturant and disrupt the protein structure. The removal of urea will reverse the denaturant condition and protein gain its function.
Thus, the correct answer is option (a).