online bio book

Botanical survey of India publishes this book. This book provides information about plant species which are rare, endangered or endemic, but all of which are grown in botanical garden..

The term wild life generally gives the impression of large and ferocious animals living in the jungle or waters such as lions and tigers, crocodiles and rhinoceros. Wild life refers to any living organism in its natural habitat. It includes all plants, animals and microorganisms other than animals..

It is the name given to the theory proposed by Jean Baptiste Lamarck (1744-1829), the French Zoologist. It is also known as the 'theory of inheritance of acquired characters'. fig. 5.3 - Jean Baptiste Lamarck Lamarck has explained his ideas on organic evolution in the book Philosophi..

. He recorded nearly 6,000 species of plants in his book Species Plantarum published in 1753. He listed more than 4,300 species of animals. He has given detailed system of his classification in another book Systema Natura..

Carolus Linnaeus - The Father of Modern Taxonomy - Carolus Linnaeus (1707-1778) was a Swedish biologist. He is considered as a pioneer in the field of taxonomy because of two significant contributions. fig. 6.2 -Carolus Linnaeus He made an attempt to classify living organisms to two kingdoms-the pl..

Butterfly This is the largest phylum with almost 80% of the animals kingdom in this phyla. Body is bilaterally symmetrical and segmented. It is divided into head, thorax and abdomen. Possess jointed legs which may be modified for walking, swimming feeding and feeling. Exoskeleton is ch..

. Darwin has given a vivid explanation of his ideas on evolution in the book 'On the Origin of Species by means of Natural Selection' published in 1859. The theory of natural selection is based on the following principle..

Phylum Arthropoda - This phylum is the largest in the animal kingdom comprising of more than 75% of the animal species that have been identified. Free living forms, aquatic (fresh water or marine) or terrestrial or aerial. Some parasitic forms also. Body is elongated and segmented, usually distingu..

Bio - war - Bio - war refers to biological war. It means that biological organisms are used as weapons to carry out the war. It is latest form of war. It is carried out by spreading the pathogens in specific part of geographical region to deliberately spread ..

Bio - war refers to biological war. It means that biological organisms are used as weapons to carry out the war. It is latest form of war. It is carried out by spreading the pathogens in specific part of geographical region to deliberately spread a deadly disease..