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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
What''s electricity and what dangers, can heat cause?
Role of Bile in Digestion Bile is produced by liver and stored in gall bladder. During digestion, the gall bladder contracts and supplies bile, rapidly to the duodenum throu
A simple equal-arm lever Make a wooden base 15 cm square and 2 cm thick. In the centre of the base fasten one more block of wood 4 cm square and 3 cm thick. Fasten to two sides
Explain the Creatinine Clearance Test It determines how efficiently the kidneys are clearing creatinine from the blood and serves as an estimate of kidney function. It compare
This project is intended to stimulate discussion during the lectures/tutorials on the choices of materials and manufacturing issues related to materials. We will discuss our "objec
basic steps in callus culture
Water extinguishers : Direct the jet at the base of the flame and keep it moving across the fire. Attack a fire which is spreading vertically at its lowest point and follow th
Surfaces of colloidal fractions of clay minerals The surfaces of colloidal fractions of clay minerals and humus are responsible for the cation and anion exchanges between soil
State the Role of Algae - Weathering Algae also plays an important role because it brings about increase in organic matter due to photosynthesis. The organic matter and CO2 fo
Mechanical or Physical Weathering Processes A rock broken into smaller pieces is said to be physically or mechanically weathered. It has a large exposed surface area which fur
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