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Explain Saliva - External Defence Mechanism
Saliva contains microorganisms which are not the normal inhabitants. Dead microbes are passively flushed by the saliva and are swallowed.
Ultraviolet Radiations : The ultraviolet (UV) light has higher energy than visible light. Hydrogen lamps, deuterium lamps and other sources of ultra-violet are used for a variety
What is the role of science in communication?
Determine how nitrogen is useful in plant nutrients The supply of nitrogen is related to carbohydrate utilisation. If nitrogen supply is insufficient, carbohydrates will be dep
Is zero an positive integer ?
CHEMICAL HAZARDS : Chemicals are present in all laboratories. It is good to consider all chemicals toxic and flammable unless one has definite information regarding its nature. Ou
Describe the Soil factors in fertilizer requirements Physical condition of the soil, soil fertility and soil reaction are three important soil factors. A poor physical condi
Observe the surface of the moon :- Use the small telescope or a pair of field glasses. Examine the surface of the moon and see if you can see any of its craters and mountains.
Optical specificity Some enzymes exhibit absolute optical specificity for at least a portion of the substrate molecule. For example, the enzyme maltase catalyzes the hydrolys
what is combustion?
3 reasons why Minnesota still has crytosporidiosis
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