question_answer 60)

  All the living organisms are basically made up of C, N, S, P, H and O. How do they enter the living forms? Discuss.

Answer:

  The elements like carbon, nitrogen, sulphur, phosphorus, hydrogen and oxygen enter into living forms through plants. Most of these elements first enter plants and become components of their organic material during the process of photosynthesis. From plants, these elements pass on to other organisms through the food chain. e.g., Plant (grasses) is eaten by goats which are further consumed by man. Thus, the organic materials are transferred from grass to goat and then to man