Classification of Living Organisms
According to the modern classification given by R.H.Whittaker in 1969, living organisms are divided into five major kingdoms, which are:
KINGDOM MONERA
It includes all prokaryotes, unicellular organisms. For example, Bacteria and Cyan bacteria.
KINGDOM PROTOCTISTA (PROTISTA)
It includes unicellular Eukaryotic organisms, which are in between plants and animals. eg. Chlamydomonas, Euglena, Paramecium. etc
KINGDOM FUNGI
It includes non-chlorophyllus multi-cellular, thallophytic organisms having cell wall. For example all types of fungi, unicellular to multi-cellular like Mushrooms and Yeast etc.
KINGDOM PLANTAE
It includes all chlorophyllus multi-cellular Eukaryotic living organisms having cellulose cell wall. For example apple, red wood etc.
KINGDOM ANIMALIA
It includes all Eukaryotic multi-cellular, non-chlorophyllus organisms having no cell wall. For example Hydra, Earthworm, Human Beings etc.
The affordable price of a softcover book is due to the use of modern technologies and the use of inexpensive consumables. The paperback lacks a hard cover, which requires special processing and material for laminating cardboard (paper vinyl, textiles, leather). Before gluing the indoor unit and the cover, the “notebooks” (block elements) are stitched. Why paperback?