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Vitamin K deficiency bleeding (VKDB) is a bleeding problem that occurs in some newborns during the first few days of life. VKDB was previously called hemorrhagic disease of the newborn.

Pellagra is a disease characterised by diarrhoea, dermatitis and dementia. If left untreated, death is the usual outcome. It occurs as a result of niacin (vitamin B-3) deficiency. Niacin is required for most cellular processes.

Rickets is a bone disorder caused by a deficiency of vitamin D, calcium, or phosphate.

Scurvy is a condition characterised by general weakness, anaemia, gingivitis (gum disease), and skin haemorrhages caused by a prolonged deficiency of vitamin C (ascorbic acid) in the diet. Vitamin C plays a crucial role in the formation of collagen, a major component of connective tissue.

Leucoplasts are a category of plastid and as such are organelles found in plant cells.Lacking photosynthetic pigments, leucoplasts are not green and are located in non-photosynthetic tissues of plants, such as roots, bulbs and seeds. They may be specialized for bulk storage of starch, lipid or protein and are then known as amyloplasts, elaioplasts, or proteinoplasts (also called aleuroplasts) respectively.

The Integrated Child Development scheme was first set up in Malappuram district of Kerala.The scheme was however launched in 1975 but Morarji Desai Government discontinued it in 1978 but however from Tenth five year plan the central government started focussing more on its objective and relaunched it.

Dynamos -mechanical energy into electrical energy.
Electric Heater – electrical energy is converted to heat.
Battery – chemical energy into electrical energy
Atomic Bomb – Nuclear energy
into heat and radiation energy

A form of small leucocyte (white blood cell) with a single round nucleus, occurring especially in the lymphatic system.

Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It is the inactive form and most of it is converted to an active form called triiodothyronine by organs such as the liver and kidneys.

Anything placed on the centre of earth doesn’t possess any weight.

Muscles attached to the vocal cords can make cords tight or loose. When the vocal cords are tight and thin, the type of voice is different from when the vocal cords are loose and thick. The length of vocal cords of men is about 20 mm. The length of vocal cords of woman is about 15 mm and vocal cords of children is very short. This is the reason for difference in voice of men, woman and children.

Sonometer measure frequency of sound

Voltmeter measures potential difference

Galvanometer detects the presence of electric current

Ammeter measures the intensity or amount of electric current

The vertebral column is situated in the median line, as the posterior part of the trunk; its average length in the male is about 71 cm. Of this length the cervical part measures 12.5 cm., the thoracic about 28 cm., the lumbar 18 cm., and the sacrum and coccyx 12.5 cm. The female column is about 61 cm. in length.

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