Atmosphere and its Importance
The Envelope of air held around the earth by its magnetic force, gravity or geomagnetism, is called the atmosphere.
Humidity of air
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Ant Colony and Bee Colony
Ant colonies are Eusocial which means living in a cooperative group in which usually one female and several males are reproductively active and the non-breeding individuals care for the young and protect the group. These are very much like those found in other social animals though the various groups of these developed sociality independently through convergent evolution.
Questions and Answers on Reproduction Biology Class X
What is the importance of DNA copying in reproduction?
Grow Banyan and Tamarind for a better environment
Both the banyan and tamarind trees have large canopy and plenty of leaves. These produce lots of oxygen and absorb lots of carbon dioxide. Thus, besides numerous other benefits they keep up the balance of environment.
Vegetative Propagation of Plants
When a new plant is developed or caused to develop through stem, root or leaf the method is called as vegetative reproduction. In other words, vegetative reproduction means- reproduction through anyone of the vegetative parts of the plant.
Dignity of Labour and Social Values
Dignity of labour means – all jobs are equal and no job should be considered as big or small.
Sexual Reproduction in Plants
Sex organs of plants are found inside flowers. A male reproductive organ is called as Androecium and a female sex organ is called as Gynoecium.
The Limit of Tolerance of Environment
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?
The Valentine’s Day and The Valentine’s Week
I did not know about the Valentine’s Day or the Valentine’s Week even till I was married. I don’t know either when I knew about it.
Palash-The State Flower of Jharkhand in India
Palash or Butea monosperma is an important tree of taxonomic family Fabaceae which is native to tropical and sub-tropical India. It is also found in Pakistan, Bangladesh, Nepal, and Srilanka etc.
First December, the World Aids Day: The Danger Still Waits
The World Aids Day is celebrated the world over on the first December every year to make the public aware about the infection of HIV (Human Immuno Virus).The celebration of this day on the world scale was first started by the World Health Organisation in 1987.
