Flowers have male and female organs, i.e., anther and stigma, and they perform the function of producing seeds. The transfer of pollen from an anther to a stigma is understood as pollination and is that the first stage within the reproduction of plants. The flowers, in many cases, are pollinated by insects and to draw in the insects, flowers have bright colours and sometimes produce sweet scent and nectar. The flowers have bright colour to attract the insects. While drinking the nectar of the flower, an insect picks up pollen on its body and when it visits another flower, it brushes some of this pollen on to the stigma, thereby making cross pollination. Insect pollinated flowers are usually blue, yellow, pink or white. In some regions, birds, bars, rodents and marsupials help in pollinating flowers. These flowers too, are very brightly coloured.
Friends you know a keyboard is the most important part of a computer. It consists of different sets of keys that help us to enter information into the computer. Today we will discuss about keyboard and its keys types and use. A standard keyboard has 104 keys. Types of Keys in a Keyboard: Alphabet Keys Number Keys Special Keys Function Keys Navigation Keys 1. Alphabet Keys: 26 alphabet keys are present on a keyboard from A to Z. these keys are not present in the alphabetical order. These keys are used to type words, sentences or paragraphs. 2. Number Keys: These keys are used for typing numbers. These keys are present above the top row of the alphabet keys and also present on the right side of the keyboard. 3. Special Keys: Keyboard has more special keys such as Space bar Key, caps lock key, backspace key, shift key, enter key, symbol keys and tab key etc. 4. Function Keys: 12 function keys are present on a keyb...
Sir you are giving very much valuable knowledge ....Thank you so very much Sir
ReplyDelete