The Environmental Calamities that shook the humanity during fifties and sixties were powerful enough to generate serious and widespread sense of responsibility among world nations towards the global environment. Some of these calamities include : The killer smog in New York and London which claimed 5000 lives in 1952; The mercury poisoning due to the consumption of mercury-contaminated seafood in Japan;
Salai tree or the Boswellia is the tree of economic and medicinal importance.
Producers in running or Lotic type of ecosystem comprise species of algae, and plants that grow on embankments. Various varieties of molluscs, tadpoles, and insects are primary consumers whereas fish, crabs, and crustaceans are secondary consumers of this ecosystem. Numerous species of bacteria and few species of fungi act as decomposers in this ecosystem.
Some propagules or seeds incidentally travel long distances and reach to other county. There they germinate and produce new plants.
These birds used to fly in and around our houses about some decades ago. But these birds are very rarely seen in our surroundings.
Dogs do their duty and this they remain proud of. Sometimes you may have seen that you are walking on foot to somewhere and a dog too is walking gracefully behind you showing that he is walking behind his owner, though you don’t recognize the dog.
Many food items in India have some special values. These food items not only provide us many nutrients, they provide us many phytochemicals that protect our bodies from many external factors as well.
The scarcity of oxygen and the need of producing more and more oxygen! We may think for sometime about it. But, anyone knows that life is not possible without it.
Kheksa is taxonomically known as Momordica dioica. It is commonly known as Kheksa, Spiny gourd, bristly Balsam pear, and Prickly carolaho, Kantola etc. It belongs to the family Cucurbitaceae.
A careful study and examination is necessary to understand the nesting behaviour of birds. Nests can be and should be studied only after the migration of birds. A scientific observation and careful study of nests reveals the secrets of the nesting concepts of these little architects (birds).
Vast variability exists in the distribution or occurrence of different life forms in different habitats. The variability of life forms in a particular habitat is considered as the biodiversity of that habitat.
Species can be classified in many different ways. One species classification system may categorise species into Typological, evolutionary, and phylogenetic species.
