Some materials contract when heated rather then expand as most materials do.
Answer: The correct answer to the question is option C
VITAMIN D
Explanation: Vitamin D is one of the essential vitamins needed by the body,it is fat soluble and plays a vital role in increasing the rate the body( intestines) absorbs calcium,phosphate and magnesium.
Vitamin D is very important for everybody but plays a crucial role in the health of the elderly (older adults) especially their bone health.
Vitamin D helps in the absorption of Calcium in the body and calcium helps in the strengthening of bones of the body.
Vitamin D is very vital in the maintainance of bone strength as well as act as a form of hormone that helps in the regulation of the growth and development of other tissues in the body.
When Vitamin D is deficient in the body especially older adults,it will lead to muscle weakness, possible bone deformity,bone pain which are all as a result of the loss of bone tissues.
A description of what the dependent and independent variables are. It wouldn't be the errors or how to improve because that is the conclusion.<span />
Answer: Abiotic (non-living) changes that affect biotic (living)
