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Studying the main parts of a flower
Examine specimens of large simple flowers such as "tulips or lilies". Count the stamens & observe how they well arranged about the central pistil. Make large diagrams of the essential organs of flower. Label the different parts of the pistil (stigma, style and ovary). Label the parts of the stamen (filament and anther).
The end of the stalk on which the flower grows is called the receptacle. At the base of the receptacle there are usuallya kind of leaf- like structures that enclose the bud of flower. These are called sepals.Above the sepals there is usually a ring of brightly coloured petals Known the corolla.
Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas
what are characteristics of resistance
Explain Sneezing Reflex Actions - Respiratory Process This reflex is an involuntary, sudden, violent and audible expulsion of air through the mouth and nose. Usually irritation
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How to make a constellarium A constellarium is a simple device used in teaching the shapes of several constellations. Get a cardboard or wood box and remove one end. Draw the s
To feel the 'spring' of air Secure a bicycle pump and place your thumb over the finish of the outlet tube. Next push the piston in forcibly and rapidly let go of it. What happe
Explain Specific Defence Mechanism In the section on white blood cells, we learnt that whenever a germ or infection enters our body, the WBCs snap to attention and destroy the
What is the job of chromatin in an animal cell?
What are Fatty acids Fatty acids are grouped into two classes, saturated and unsaturated fatty acids. The terms 'saturated' and 'unsaturated' fatty acid may not be new to yo
Q. List the methods of oil extraction? The methods of oil extraction are: (i) traditional method (ghani); (ii) improved methods, such as hydraulic pressing, screw pressing, pre
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