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.
What are the two main metabolic gases which are transported by the blood? Answer: The main metabolic gases which are transported by the blood are molecular oxygen (O
Write down the production of RNA and write down the enzyme which catalyzes the process?
Give a brief explanation of suction force of the plant cell. Does the suction force make probable or make tricky the entrance of water in the cell?
Where in the leaves is the photosynthetic tissue often is situated?
Illustrate the term hormones?
Describe the structures which participate in the human auditory sensitivity?
Why there is abandonment of ammoniotelic excretion takes place after the passage of animals from aquatic to terrestrial habitat?
Specify the physical elements which have contributed to the great amount of the available energy over the primitive earth during the time of origin of life?
Explain the term membrane? Briefly explain it.
How main classes of arthropods categorized according to presence of larval stage in their embryonic growth?
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