In this article we will discuss about:- 1. Introduction to Lichens 2. Symbiotic Association of Lichens 3. Reproduction. Introduction to Lichens: Lichens are composite organisms consisting invariably of a fungus and an alga or a cyanobacterium. The two components are permanently associated with each other to form a lichen- body. The relationship is symbiotic. The algal or cyanobacterial component provides [...]
In this article we will discuss about the classification of algae. A generally agreed classification of algae recognizes nine broad taxonomic groups, called Divisions. These are Chlorophycophyta, Xanthophycophyta, Bacillariophycophyta, Phaeophycophyta, Rhodophycophyta, Chrysophycophyta, Euglenophycophyta, Cryptophycophyta and Pyrrophycophyta. Among these, the members of the first five Divisions are distinctly plant-like organisms, but the others, particularly the flagellates, have some animal-like characters. For [...]
In this article we will discuss about:- 1. Introduction to Protozoa 2. Cellular Characteristics of Protozoa 3. Classification 4. Reproduction. Introduction to Protozoa: Protozoa represent the most primitive group of animal organisms. They are unicellular eukaryotic cell wall-less motile organisms and form a very large highly diverse group originating from several phylogenetic lines. There are about 20,000 living species and [...]