Relationship between vitamin D and sunrays
Illustrate the relationship between vitamin D and sunrays?
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Vitamin D or calciferol is synthesized in the skin by the action of ultraviolet range of sunrays on precursor molecules. Afterward it is converted into its active form in the liver and kidneys.
Compare and contrast authentic leadership and emotional intelligence. What leadership theory do you think is better? Why?
Describe briefly the term speciation?
Describe briefly about the term competition? Which kind of ecological interaction is competition?
Streptokinase is a substance used in treatment of acute myocardial infarction. How does this substance act?
State how many chambers do the bird heart and the mammalian heart have? Concerning the maintenance of temperature specify the benefit of double and complete circulation of these animals?
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Explain the nine phyla of kingdom Animalia?
What do you mean by the near point and the far point of vision?
Write down type of digestion which takes place in cnidarians?
Explain the relation between the thyroid and hypophysis?
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