end of economic man

The period extending from birth up to 10 - 13 years is called childhood. During this period, the growth is very slow. Growth during this period is controlled by the hormone thymus, secreted by the thymosin gland. During puberty (between 14 - 18 years) there is enhanced activity of 2 growth hormones..

The nephron or uriniferous tubule is the functional unit of the kidney. A nephron consists of a twisted tubule closed at one end, open at the other with a network of associated blood vessels. Each kidney of man is formed of about one million nephron..

Question: What direct value does a forest have for man? Answer: Forests contribute to the economic development of our country by providing goods and services to the people and industry. They are intimately linked with our culture and civilization. Forests are useful ..

judiciously use the resources that are available in plenty and maintain them without depletion or pollution restrict the use of the already endangered resources and protect them from unsustainable development. to increase awareness about the concept of sustainable development and ensure tha..

Sterilisation is a surgical procedure that involves cutting of the tubes that conduct the gametes. In males it is called vasectomy in which each vas deferens is cut and the cut ends are tied back. In females, it is called tubectomy in which the oviducts are cut and the cut e..

The respiratory system starts with the nose that encloses the nasal cavity . The nasal cavity opens outside through the openings called the nostrils . The nasal cavity is divided into two portions by a cartilagenous septum and is lined by fine hairs that filter the dust particles from the air...

1. Politics is not meant for the gentlemen, nowadays. 2. Tuberculosis is a deadly disease. Observe the following subjects, diseases and games / sports. All of them look like plurals (i.e. they end in s). But they are, in fact, singular nouns. Subject Diseases Games/Sports ..

The respiratory system starts with the nose that encloses the nasal cavity . The nasal cavity opens outside through the openings called the nostrils . The nasal cavity is divided into two portions by a cartilagenous septum and is lined by fine hairs that filter the dust particles from the air...

The nephron or uriniferous tubule is the functional unit of the kidney. A nephron consists of a twisted tubule closed at one end, open at the other with a network of associated blood vessels. Each kidney of man is formed of about one million nephrons. Each nephron has a length o..

In the systemic circulation, the organs receive the blood from the vessel coming directly from the heart. However, a portal circulation connects two organs. A portal vein is that which connects two organs without the involvement of heart in between. This means that the portal veins begin and ..