Make a list of algae and fungi that have commercial value as source of food, chemicals, medicines and fodder.

Algae are known to reproduce asexually by variety of spores under different environmental conditions. Name these spores and the conditions under which they are produced.

Apart from chlorophyll, algae have several other pigments in their chloroplast. What pigments are found in blue-green, red and brown algae that are responsible for their characteristic colours?

‘Peat’ is an important source of domestic fuel in several countries. How is ‘peat’ formed in nature?

Biological classification is a dynamic and ever evolving phenomenon which keeps changing with our understanding of life forms. Justify the statement taking any two examples.