Answer:
It is important to classify the millions of species on Earth because it makes study of organisms easier. Classification occurs on the basis of similarities and differences that is present among the organisms. Organisms are placed in one group if they are similar in characteristics. For example, those organisms which are placed in animals have the ability to move from place to place and unable to make their own food.
To estimate the prevalence of vitamin D deficiency (25(OH)D) <50 nmol/L among recently arrived immigrants from Africa and Asia in Oslo, and to explore 25(OH)D levels according to origin, gender and age.
Reduce the amount of carbon, fossil fuels and methane in the atmosphere.
