Inner-transition Elements
> Atomatic number of the elements 1st Period n = 1 Short period 2 Atomic number 1 and 2 2nd Period n = 2 Short period 8 Atomic number 3 to 10 3rd Period n = 3 Long period 8 Atomic number 11 to 18 4th Period n = 4 Long period 18 Atomic number 19 to 36 5th Peri..
Thymus
It is a gland that is prominent behind the breastbone in children. It gradually decreases in size in adults. It secretes hormone called thymosin. Thymosin helps in the production of lymphocytes..
Thymus and Pancreas
It is a gland that is prominent behind the breastbone in children.It gradually decreases in size in adult..
Inherited Traits
A man's characteristics, such as height, colour of the eyes, intelligence, etc. are all inheritable. Often we see that the children of parents with blue eyes would get blue eyes; baldness passes on in the family from one generation to another; even disorders like diabetes and heart disea..
Communicable Diseases - Continued
Typhoid - This is the most communicable disease in our country and effects mainly children in the age group 0-15 years. Every year 2.5 million people suffer from typhoid. Caused by bacterium salmonella typhi, it passes out through the excreta of the infected person. This is spread by hous..
Population Control
Population Control - Increasing population is a serious issue, particularly in developing countries. It is necessary for every generation to produce more off springs because many individuals do not survive to reach the reproductive age due to natural causes. However, man has upset this equation as ..
Symptoms
Deficiency of vitamin D leads to loss of Ca + + in the urine. Due to this, no Ca + + gets deposited in the bone. The result in deformities in the bones of the legs and ribs. This condition is called rickets and occurs in children. The patient has restricted movement of the limbs and ..
Question 10
Question: A certain family buys salt of inferior quality. They also do not have access to sea food, vegetables and fruits. As a result the children suffer from retarded mental and physical growth. What deficiency are they facing? Suggest 2 remedies. Answer: They are suffering ..
Mechanism of Digestion
. The food then moves into the stomach. The opening is controlled by the cardiac sphincter which is a muscular ring. The stomach opens only in response to swallowing. Here the proteins are broken down into proteoses and peptones by the action of pepsin and the soluble milk protein caesinogen is deg..
Structure of the Atom
. In 1793, he left for Manchester to teach physics and chemistry in a college. In 1801, he observed and discovered the law of expansion of gases on heating. He also enunciated the law of partial pressures and found methods of determining vapour pressure of gases. He invented the dew point hygromete..
. In 1793, he left for Manchester to teach physics and chemistry in a college. In 1801, he observed and discovered the law of expansion of gases on heating. He also enunciated the law of partial pressures and found methods of determining vapour pressure of gases. He invented the dew point hygromete..See what our Users say :
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