BIOLOGY

The flower is the reproductive structure of flowering plants. It contains the male and female sex organs which enable them to exhibit sexual reproduction. Fertilization inside the flower often leads ...
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Adaptation is defined as the possession of the characteristics or traits or behaviour or structure or features that evolved over a period of time which enable an organism to survive ...
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Tolerance is the ability of living organisms to withstand or tolerate little unfavourable changes in the environment which affect their survival. Living organisms can only live in a particular habitat ...
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Decomposers Decomposers are fungi or bacteria which live saprophytically or feed on dead remains of plants, animals and organisms leading to or resulting in recycling of nutrients by breaking down ...
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The entire surface of the body is covered by skin. In man, the skin is about 1 to 2mm thick except the skin of the palm and soles with thickness ...
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A cartilage is a tough elastic and semitransparent tissue devoid of blood vessels and nerves. Functions of cartilage It prevents friction between two bones and allows smooth and free movement ...
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Carbohydrates are organic compounds containing carbon, hydrogen and oxygen atoms. The ratio of hydrogen to oxygen is 2:1 in all carbohydrates. Starch, sugar, glycogen and cellulose are carbohydrates. They are ...
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Nastic/sleeping movements The pinnate and bipinnate leaves of many leguminous plants open and close as a result of certain changes in temperature, light intensity or humidity of the atmosphere. The ...
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Enzymes are organic catalysts of protein origin produced by living cells which help to speed up or slow down the rate of chemical reactions but remain chemically unchanged at the ...
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Food substances are chemical compounds and therefore can be tested chemically. Test for carbohydrates Test for glucose (a reducing sugar) To a little solution of glucose, add small quantities of ...
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