PDF chapter test TRY NOW

All the living organisms are basically made up of C, N, S, P, H and O. How do they enter the living forms? Discuss.
 
All living organisms require some essential elements: carbon, hydrogen, oxygen, nitrogen, sulphur, phosphorus, etc. The living organisms can get these nutrient elements from the , but these elements enter into living forms through plants. The majority of these elements enter plants and become part of their organic material through , nitrogen fixation, and other processes. These are also transferred down the food chain from plants to other organisms.