Life Science

Structure and function of animal cell and cell organelles

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  Objects having characteristics of cellular organization, growth, reproduction, ability to sense environment and give response are living organisms. There are some important features of living organisms: It should grow, which means its structure changes as time goes by in an advantageous manner. It should show adaptation to the environment. It should maintain some balanced … Read more Structure and function of animal cell and cell organelles

Preliminary idea of medicine and its classification

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Preliminary idea of medicine and its classification Medicine is the field of health and healing. It includes nurses, doctors, and various specialists. It covers diagnosis, treatment, and prevention of disease, medical research, and many other aspects of health. Medicine aims to promote and maintain health and wellbeing.  Conventional modern medicine is sometimes called allopathic medicine. … Read more Preliminary idea of medicine and its classification

sex determination

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Whether an animal will become a male, a female, or a hermaphrodite is determined very early in development. Scientists have worked for hundreds of years to understand the sex-determination system. The first major breakthrough in understanding sex determination was the discovery of sex chromosomes in the early 1900s. From meticulous analyses of male and female … Read more sex determination

Common classification of animals – domestic and wild animals

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Common classification of animals – domestic and wild animals The pets in our households are all descendants of wild animals, many of which still run free today. But dogs, cats, and rodents are all domesticated to varying degrees, with a wide range of consequences for their behavior and genetics. To understand the nitty gritty of … Read more Common classification of animals – domestic and wild animals

sex-linked inheritance

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  The chromosomes present in the diploid cells of the majority of the sexually reproducing animals are of two types: autosomes bearing genes for somatic characters and sex chromosomes bearing genes for sex.  Sex chromosomes also carry some genes for non-sexual characters such as colour blindness and haemophilia.  Such genes which are always associated with … Read more sex-linked inheritance

Piggery

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Piggery Pig farming is the raising and breeding of domestic pigs as livestock, and is a branch of animal husbandry. Pigs are farmed principally for food (e.g. pork, bacon, gammon) or sometimes skinned. Breeds of pigs The indigenous pig has been the basis used for pig production for a long period of time. It is … Read more Piggery

Excretory System

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Excretory System Introduction If you exercise on a hot day, you are likely to lose a lot of water in sweat. Then, for the next several hours, you may notice that you do not pass urine as often as normal and that your urine is darker than usual. Do you know why this happens? Your … Read more Excretory System

Blood groups

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Blood groups Blood group, classification of blood based on inherited differences (polymorphisms) in antigens on the surfaces of the red blood cells (erythrocytes). Inherited differences of white blood cells (leukocytes), platelets (thrombocytes), and plasma proteins also constitute blood groups. English physician William Harvey announced his observations on the circulation of the blood in 1616 and … Read more Blood groups

POULTRY FARMING and SILVER REVOLUTION IN INDIA

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POULTRY FARMING (SILVER REVOLUTION) IN INDIA practice of raising poultry, such as chickens, turkeys, ducks, geese, as a subcategory of animal husbandry, for the purpose of farming meat or eggs for food. requires small capital and provides additional income and job opportunities to a large number of rural population in the shortest possible time. The … Read more POULTRY FARMING and SILVER REVOLUTION IN INDIA

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