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Metals (occurence, properties and uses)
Metals form an important class of elements. They are widely used in our daily life for a large number of purposes. They are the elements […]
Metals form an important class of elements. They are widely used in our daily life for a large number of purposes. They are the elements […]
Aquatic adaptations in animals: a) Aquatic adaptations in fish They have streamlined body which offers least resistance during locomotion through water. Fins help in locomotion. Pectoral […]
The structural features of living organisms that develop over a period of time to enable them to survive and reproduce in a particular environment is […]
The pressure given by a force is directly proportional to its magnitude, i.e. Pressure (P) α Force (F) ………………………… (i) Similarly, the pressure given by […]
Terminologies in Genetics Every living organism produced by sexual method of reproduction resembles its parents and at the same time is different from the parents […]
Chromosomes The nucleus of eukaryotic cells consists of a thin reticulate complex of DNA and proteins (histone), which are not distinctly visible in a non-dividing […]
Vegetative propagation is a form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or grows from a specialized […]
The human heart In all vertebrates including human beings, there is a single heart which acts as a pumping organ of blood vascular system. It […]
Blood cells The blood cells constitute about 45% of the total blood volume. There are three major types of blood cells; Erythrocytes, Leukocytes and Thrombocytes. […]
One hundred and fifteen different elements have been discovered so far, which combine to form a huge number of compounds. On the basis of their […]
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