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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
Blowing soap bubbles Soap films and bubbles serve very well for observations on surface tension. You can make a good soap bubble solution by placing three level tablespoonfuls o
Observe how a metal tyre is fitted on the wheel of bullock cart
Under what conditions an element is called an essential element? An element is called as an essential element, if: a. The plant can not complete its life cycle without it
Mr. X is a 24-year-old Caucasian male. He denied suicidal and homicidal ideation, and was not actively psychotic. He was well-groomed, clean-shaven, and dressed casually in jeans a
Differentiate between soil water content and plant available soil moisture. The mass of water lost relative to mass of dry soil is called soil water content whereas plant avai
What are the differences between prejudice, discrimination and stereotype? Prejudice; This is generally referred to as being unfair, bias or opinions towards another person
Starch is a non-reducing substance , as except one carbonyl group, all other carbonyl groups are involved in glycosidic bond formation. It may be hydrolyzed by boiling with hyd
father of environmental microbiology
First Hominids The First Human Fossil The earliest human like or hominid remains come from two separate East African sites. Ethiopia has yielded several hundred fossil fragment
100 W m-2 + 4.56 J s-1 m-2 – 23.567 W m-2 =
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