symbiotic

Lichens: habitat, types and structure

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Lichen is an intimate association of algae and fungi where two organisms live in close association with each other. The association is so close that they appear to be a single organism. The algal partner is called phycobiont, whereas the fungal partner is called mycobiont. The fungal component forms the bulk of the lichen thallus. … Read more

Five kingdom classification and features

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The five kingdom system of classification was proposed by R.H Whittaker in 1969. This classification is based on following criteria: Complexity of cell structure- prokaryote and eukaryote. Complexity of organism’s body- unicellular and multicellular. Mode of obtaining nutrition– autotrophs and heterotrophs. Life style i.e. producers, consumers and decomposers. Phylogenetic relationship. The five kingdoms are Monera, … Read more