Inadequate dietary vitamin D or its deficiency leads to malabsorption of calcium. Nutritional disorder leads to the rare disease rickets, which causes bones to become soft and bend in children. In adults, vitamin D deficiency leads to osteomalacia, which causes weak bones, bone pain and muscle weakness. 
The body needs vitamin D to properly absorb calcium and phosphorus from the diet. However, keeping the right quantities of calcium and phosphorus in bones is challenging when vitamin D levels are low. 
The two sources of vitamin D are-
- Natural sunlight 
- Foods such as fish oil, Egg yolk and fatty fishes like salmon and mackerel
There are other disease conditions which lead to poor absorption of vitamin D-
- Inflammatory bowel disease
- Celiac diseases
- Kidney problems
To learn more about Rickets here-
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Answer:
12. which is used to measure ocean depth the answers is C
Explanation:
 just because 
 
        
                    
             
        
        
        
Answer:
The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine. 
Explanation:
deoxyribose + phosphate group + thymine
 
        
             
        
        
        
A fracture or dislocation is a break or crack in the bone. It is when two bones are out of place at the joint that connects them which may also cause injury to nerves and blood vessels. The types of fracture are: Closed refers to fracture that does not break skin, Open, a fracture where external wound associated with fracture, Non displaced, a simple crack of bone and the Displaced, a fracture in which there is actual deformity. But there are three types of treatment for fracture or dislocation namely: Open treatment, examples are Surgically Cleaning the Bone, Removing Contaminated or Non-Viable Tissue, Stabilizing the Bone and many more. Other type of treatment is closed treatment like No immobilization and Cast Immobilization. Third type of treatment is Percutaneous Skeletal Fixation like internal and external fixation.