Vitamin D and sunrays
State the association between vitamin D and sunrays?
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Vitamin D, or calciferol, gets synthesized within the skin through the action of ultraviolet range of sunrays upon the precursor molecules. Later it gets transformed into its active form in liver and in kidneys.
Name the habitat in which birds live? Answer: Birds are terrestrial animals however the majority of species as well explore the aerial atmosphere by flying.
Write down the physiological systems which are known as integrative systems? Why this designation justified?
Write down the differentiation between endocrine gland and exocrine gland?
How are solutions categorized along with comparative tonicity?
How are solutions categorized according to their relative tonicity?
Name the two groups of defense mechanisms of the body against foreign or injurious agents? Explain the difference among them?
In comparison to the cyclostomes (primitive vertebrates) specify the main novelties presented by the fishes?
Quality Assurance or Quality Control: The words “quality assurance” and “quality control” are frequently employed interchangeably to refer to ways of making sure the quality of a service or product. The words, however, have dis
What are the fundamental morphological features of the echinoderms?
Are viruses are cellular beings?
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