Breathing In and Breathing Out …
The bio-mechanical process of exchange of gases between an individual and his atmosphere is called as breathing.
diaphragm
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Underlying Causes of Loss of Biodiversity
Varieties of Biological Resources are in international demand today. To meet this international demand, illegal smuggling of these resources is done through illegal routes. Some species of plants and animals have been threatened, rare, endangered or critically endangered due to such practices. Several valuable species of plants and animals have become extinct due to these activities. The international trade in animal body parts is increasing rather rapidly due to their high prices in the international markets. Where possible, the trade of whole animals is also in full swing.
Farmers and their conditions in India
Sometimes it so happens that serious and abrupt changes in weather condition ruin the entire crop. Thus, the hard work of the whole season goes in vain. What about the debt which he has to pay? On the other hand, market prices of his agriculture production often remain too less to support the economy of the farmer. These are the conditions under which a number of farmers in different states of India have been reported committed suicides.
Determination of sex in living organisms
Determining male or female form of living organism through sexual reproduction is called as sex determination. Sex determination on a large scale is of two types- environmental, genetic and chromosome based.
Amazing World of Animals
The term animal has its origin from the Latin word animalis which means one who has breath. This word is usually applied for the non-human members of the Kingdom Animalia in animal taxonomy. However, the closer relatives of humans like mammals (having mammary glands) have been included in this term.
Non-renewable and Renewable Sources of Energy
Energy is the basic force capable of running life. But, the sources of energy are running short.
Atmosphere and its Importance
The Envelope of air held around the earth by its magnetic force, gravity or geomagnetism, is called the atmosphere.
Fern species that grow on old walls in
Ferns belong to Pteridophytes and grow on high altitudes in moist cold places. These don’t need any fertile soil. Since Ranchi or the most part of Jharkhand is located on high land its climate is rather different and somewhat similar to those area of mountains. The author reports here the two fern species that preferably grow in this region that too on old walls.
Grow Pakad for more oxygen
Pakad or Ficus virens is one significant tree of the Panchvati group. Panchvati is the group of five sacred or important trees worshipped and adorned in the Hindu culture since ancient time.
Overpopulation in India
A group of individuals of a particular species occupying a particular area at specific time is called as population.
Working Time and Leisure Time: the Basic Concepts
Working time is the time when a person remains busy in doing some work. It may be the part of his daily routine when he has to do something either assigned by an organisation or by his own plan of work.
Control and Coordination-Biology for Class x
Such bio-chemical and physiological management of body through which body activities remain in control while keeping up adjustments with different body organs
