developed nations and developing nations

The importance of maintaining the ecological balance and conservation of the resources has been increasingly becoming clear in the last two decades. It has now become necessary for all countries in the world to recognise this fact and plan what is known as 'sustainable development'. The ..

This is a very important step in photography. This process can be done only with the exposed film. The exposed film is developed only in dark using some alkaline solutions like quinol or pyrogallol. The alkaline solutions act as developers by reducing silver bromide to silver. ..

These are confined to national boundaries. Examples: Minerals and lan..

This comprises area which is dedicated for conservation of the environment, natural objects and the wildlife therein. Forestry operations are prohibited and it is open to visitors who are not allowed to disturb or harm the protected plants or animal..

All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology..

Embryonic Development - All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". Embryonic Devel..

All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". Embryonic Development includes a definite se..

In rats, as in all vertebrates, sexes are separate. Male and female exhibit several differences in their external features. The Male reproductive system consists of a pair of testis that are enclosed in scrotal sacs, a pair of vas deferens, a seminal vesicle, ejaculatory duct and penis. The female ..

Reproduction and Development..

Reproduction and Development..