Arrange the following steps of decomposition in a sequential order: Catabolism, Leaching, Mineralisation, Humification and Fragmentation.

What are selectable markers? Give two example.

Differentiate between

a. Grazing food chain and Detritus food chain

b. Gross primary productivity and Net primary productivity

Write the appropriate method for disposals of e-waste.

The number of taxa exhibiting asexual reproduction is drastically reduced in higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible