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Dissecting simple flowers
Label each of five cards or pieces of White paper with one of the following words: stamens, pistil, petals,sepals, receptacle. Dissect a flower carefully and place the parts gently on the appropriate cards .
Some flowers can be pulled apart quite easily but a knife or scissors may be needed for others kind of flower. When we have a sufficient number of flowers available this exercise is most Important as an individual pupil activity. Simple flowers with a single row of petals should be selected.Pick up one of the stamens and rub the anther lightly across a piece of black paper. Traces of pollen will usually be seen by you.Cut the ovary crosswise with a sharp knife gently and count the ovules or "seed pockets". Look for traces of seeds in the ovules
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
clothing materials and their respective qualities
A Cloud Made of Comets The cold outer areas beyond Pluto are the regions of comets, those visitors that dash, around the Sun, seldom to be seen again. Comets are of grei3t
why do we get shock when we touch an open wire?
Explain the Hyperpnoea It is a term for an increase in the rate and depth of respiration. The cause of hyperpnoea may be voluntary or due to impulses from the hypothalamus.
Explain the Erythropoiesis Erythropoiesis, derived from the word 'erythros' meaning red and 'polesis' meaning making, is a part of a broader process, hemopoiesis, i.e., formati
Which class of microflora would you expect to be most active under following conditions. i ) In rice paddies requiring nitrogen - blue-green algae ii) In acid soils - so
Fortin type barometer A simple Fortin type barometer can be improvised for the junior laboratory. The glass tube is held vertically with single end in the reservoir by two curt
Explain the Olfactory receptors In the section on taste receptors earlier, we learnt that there is a regional distribution of taste buds for primary taste sensations like sweet
TO SHOW WHERE AIR MAY BE FOUND 1) Plunge a narrow-necked bottle, mouth down into ajar of water. Slowly tip the mouth of the bottle in the direction of the surface of the water
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