Describe the process of decomposition of detritus under the following heads : Fragmentational leaching, catabolism, humification and mineralization.

Discuss the general properties of nitrogen family under the following heads :

select the correct set of steps involved in the process of decomposition. (a) stratification, (b) catabolism, (c) fragmentation, (d) mineralization, (e) leaching

Briefly describe the processes and products of decomposition.

Describe the following processes with an example in each case : Acetylation

Which of the following processes of decomposition produces a substance resistant to microbial action?

Describe the following processes with an example in each case : Protonation

How many of the following statements are incorrect ? (i) Decomposition is largely an anaerobic process . (ii) Fragmentation , leaching , and catabolism occur simultaneously on detritus. (iii) The vertical distribution of different species occupying different levels is called stratification . (iv) The pond is a deep water body . (v) The rate of decomposition is controlled by the chemical composition of detritus and climatic factors.

A coin and a die are tossed . Describe the following events . D : getting a head or a tail.

With regard to the respiratory system and the process of respiration in man, answer the following questions: Briefly describe how the above mentioned muscles help in the inspiration of air.

Fragmentation, leaching and catabolism are some of the important steps of decomposition. Study the following statements I , ii and iii regarding these and select the correct option. (i) Detritivores (e.g., earthworm) breakdown detritus into smaller particles. (ii) Water soluble inorganic nutrients go down into soil horizon and get precipitated as unavailable salts. (iii) Decomposers (e.g., bacteria and fungi) secrete digestive enzymes and degrade detritus into simpler inorganic substances.