Reproduction in Human Being
In human beings reproduction takes place through the activities of male and female reproductive organs. To understand this, it is essential to study the structure of male and female reproductive systems separately.
In human beings reproduction takes place through the activities of male and female reproductive organs. To understand this, it is essential to study the structure of male and female reproductive systems separately.
Ozone absorbs ultraviolet radiations so that much of it is never allowed to reach to the earth surface. The protective umbrella of ozone layer in the stratosphere protects the earth from harmful ultraviolet radiations. Ozone plays an important role in the biology and climatology on the earth’s environment. It filters out all the radiations that remain below 3000Å. Radiations below this wavelength are biologically harmful. Hence any depletion of ozone layer is sure to exert catastrophic impacts on life in the biosphere.
Natural habitats support a variety of living organisms, some of which endemic to one particular habitat.
Days have gone when students felt it very hard for them to have a friendly talk with their teachers. There were miles of hesitations between a students and teachers.
In the classroom set up many students were so shy and hesitant that they even did not lift up their hands to answer a question even when they knew it properly.
Bhindi in Hindi and Okra in English has been an integral part of the Indian vegetable since very long.
The predominant features that create structural complexity in the environment, such as plants or animals are called as a habitat.
A process, in which natural habitat is rendered functionally unable to support the plants and animals occupying it, is named as Habitat destruction. In the process of habitat destruction, plants and animals that previously used the place are displaced or destroyed, reducing biodiversity.
The resources that provide food to living organisms are called as food resources.
Sugar apple or Sharifa is the fruit of taxonomically known tree Annona squamosa. It is native to tropical climate in the Americas and West Indies.
The mechanical process of breathing involves inspiration and expiration.
Respiration is different in aquatic and terrestrial animals. Aquatic animals repire by means of gills and skin while terrestrial animals breathe in through lungs.
The Pollution of atmosphere leads to severe consequences on local, regional, national and international levels.
We have been hearing about environmental pollution, loss of biodiversity, energy crisis, and the sustainable environment since long. So many things have already been infused in school syllabi as well. But how many of us really apply in our real life the things about which we have read in our classes? If you collect yourselves and think seriously, you may find that you are still not as careful as you are supposed to be.











