The number of organisms in a population divided by a unit of area or volume is called ______.

Exploring molecular, genetic and species-level diversity for products of economic importance is called:

Match List I with List II: List I: A. Decomposition B. Detritus C. Mineralisation D. Humification List II: I. Accumulation of dark coloured amorphous colloidal substance II. Release of inorganic nutrients by the activity of microbes in soil III. Breaking down of complex organic matter into inorganic substances IV. Dead remains of plants and animals including fecal matter Choose the correct answer from the options given below: