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Introduction : In any laboratory dealing with biological experiments, hazards can occur mainly due to chemicals and biological materials. In the previous exercise you have done the activity of classifying hazardous chemicals and you also learnt the skill of handling such chemicals. In this exercise you will carry out the activities related to the disposal of biological materials after the experimental work with such materials is over. Disposal activities are related to microorganisms and dead animals. Since these materials cause contamination and infections very rapidly, more care is required in their disposal. Disposal of plant materials is comparatively simpler. Put all the used plant materials in a disposable bag, seal or tie the bag and put it in the waste collecting bins.
Frost in the classroom Frost can be made in the classroom by using a tall metal container like as a tin can. Pack the can with exchange layers of ice and salt, using about doub
please give me some variable for making of hypothesis
describe the factors which decide the broad area of scientific activity?
A physician notes that in a patient there is impaired vibration and position sense, astereognosis, and ataxia. The physician noted loss of all sensations in some areas of the patie
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ehat is protoplasm and other levels of organization
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